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Optimum Nutrition

Optimum Nutrition Serious Mass 12lb (5.4 Kg)

Optimum Nutrition Serious Mass 12lb (5.4 Kg)
  • Vegetarian
  • Vegan
  • Gluten Free
  • Diabetic
  • Wheat Free
  • ††† 1,250 calories per serving in water; 1,630 calories when made with low fat milk
  • ††† 50 Grams of protein from a combination of faster and slower digesting sources including Whey, casein, and Egg
  • ††† 250-plus grams of carbohydrates to support fueling of intense workouts and aid in the replenishment of glycogen stores
  • † † Enhanced with Creatine, L-glutamine & Glutamine Peptides, Choline, Inositol, PABA, and MCTs
  • ††† 25 Vitamins & Essential Minerals with an emphasis on B-vitamins and Antioxidants
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3.6
out of 5
Read 67 Reviews
Breakdown of Customer Ratings based on 67 Review(s).
Effectiveness
4
Value
4
Ease of Use
3
Quality
4
Taste
3
Mixability
3
Overall Rating
4

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Why buy Optimum Nutrition Serious Mass 12lb (5.4 Kg) ?

Those who need the extra calories most, often have the toughest time consuming enough of them. For many aspiring to be bigger, highly-active metabolisms, weaker appetites and on-the-run lifestyles make consuming sufficient calories through whole foods alone a real challenge.

With Serious Mass, you've got nothing to lose and lots to gain.

Over 1,250 calories, 50 grams of protein, 250-plus grams of carbohydrates, and 25 vitamins & minerals with added glutamine and creatine into every serving. It's time to stop thinking small; get serious - Serious Mass!

Video Review of Optimum Nutrition Serious Mass 12lb (5.4 Kg)

Nutritional Breakdown for Optimum Nutrition Serious Mass 12lb (5.4 Kg)

Ingredients of Optimum Nutrition Serious Mass 12lb (5.4 Kg)

12 Lbs. Banana
Serving Size2 HeapingScoops(334g)
Servings Per Container16
Amount Per Serving In Water % Daily Value
Calories 1250
Calories From Fat 35
Total Fat 4g 6%*
Saturated Fat 2.5g 13%*
Cholesterol 80mg 27%
Total Carbohydrate 254g 85%*
Sugars 21g Ü
Protein 50g 100%*
Vitamin A 5000IU 100%
Vitamin C 60mg 100%
Vitamin D 200IU 50%
Vitamin E 30IU 100%
Thiamin 4.8mg 320%
Riboflavin 4mg 235%
Niacin 50mg 250%
Vitamin B6 5mg 250%
Folic Acid 400mcg 100%
Vitamin B12 10mcg 167%
Biotin 300mcg 100%
Pantothenic Acid 25mg 250%
Calcium 630mg 63%
Iron 5mg 28%
Phosphorus 460mg 46%
Iodine 150mcg 100%
Magnesium 140mg 35%
Zinc 15mg 100%
Selenium 70mcg 100%
Copper 1mg 50%
Manganese 2mg 100%
Chromium 120mcg 100%
Molybdenum 75mcg 100%
Sodium 430mg 18%
Potassium 940mg 27%
Creatine Monohydrate 1g Ü
L-Glutamine 500mg Ü
Glutamine Peptides 500mg Ü
Choline (As Choline Bitartrate) 250mg Ü
Inositol 250mg Ü
PABA (Para-Aminobenzoic Acid) 5mg Ü
* Percent Daily Values are based on a 2,000 calorie diet
Ü Daily Value not established
Other Ingredients:
Maltodextrin, Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Egg Albumin, Sweet Dairy Whey), Natural And Artificial Flavors, Vitamin And Mineral Blend (DiPotassium Phosphate, Magnesium Aspartate, DiCalcium Phosphate, Calcium Citrate, Ascorbic Acid, Niacinamide, Zinc Citrate, Beta Carotene, D-Calcium Pantothenate, D-Alpha Tocopheryl Succinate, Selenomethionine, Copper Gluconate, Ferrous Fumarate, Manganese Amino Acid Chelate, Thiamin Mononitrate, Pyridoxine Hydrochloride, Riboflavin, Chromium Polynicotinate, Folic Acid, Biotin, Molybdenum Amino Acid Chelate, Cholecalciferol, Potassium Iodide, Cyanocobalamin), Medium Chain Triglycerides, Lecithin, Malic Acid, Acesulfame Potassium, Sucralose, FD&C Yellow #5.
Allergen Information: Contains Milk, Egg, Wheat (Glutamine Peptides) And Soy (Lecithin) Ingredients.

Recommended Usage of Optimum Nutrition Serious Mass 12lb (5.4 Kg)

Add two heaping scoops of Serious Mass to a blend with 650-750ml of cold water or milk. New users may find it beneficial to begin with one half serving daily for the first week, gradually increasing to one or more full servings several times a day.
Customer Reviews
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  • Captshiznit
    Effectiveness
    1
    Value
    1
    Ease of Use
    4
    Quality
    1
    Taste
    1
    Mixability
    1
    Overall Rating
    2

    “ Ehh con mi amigo es producto es no bueno si mi abuelo es alto and mi madre es bonito y tu es punta con grande bolas ”

  • Fraser
    Effectiveness
    1
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    1
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    1
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    1
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    1
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    1
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    1

    “ Best gainer on market- I only take 1/2 servings- 600 calories and 35g proteuin when taken with milk. Need to mix it in a blender though- doesnt mix to well in a skaker as lots of powder. Tastes great and is easy to drink. Put on 30lbs so far! ”

  • Effectiveness
    5
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    4
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    2
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    4
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    5
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    4

    “ Awsome product gained 2.5 stone in 2 months ”

  • Rl
    Effectiveness
    5
    Value
    5
    Ease of Use
    3
    Quality
    4
    Taste
    5
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    2
    Overall Rating
    4

    “ Awsome gained 2.5 stone of muscle in 3 months ”

  • Effectiveness
    4
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    5
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    3
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    4
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    3
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    3
    Overall Rating
    4

    “ This is by far the best gainer iv used.If u follow the directions u wil def put on weight. i got stronger and heavier but ur body fat wil increase due 2 high amounts of calories.mixes n tastes gd but takin 3 times daily it starts 2 become a chore. ”

  • Effectiveness
    5
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    5
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    4
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    5
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    4
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    5

    “ Had great gains with this. The best weight gainer I have used so far. It fills you right up, and I also recommend taking 2 half servings otherwise you might feel overwhelmed. You need a blender to mix this as it is very thick even with half servings ”

  • Will
    Effectiveness
    5
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    5
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    3
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    4
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    4
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    1
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    4

    “ Helped me gain just under a stone after using for only 1 month. Obviously very effictive, and doesnt taste as bad as people say. Is very hard to mix though, you will definately need a blender. ”

  • Effectiveness
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    “ Hi just great gained 3,6 lbs in an week. superb ”

  • Cwilson
    Effectiveness
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    3
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    1
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    2

    “ Tastes like crap, i have to hold my nose to swallow it, its that bad!!!! ”

  • Ben Patterson
    Effectiveness
    5
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    4
    Ease of Use
    4
    Quality
    5
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    5
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    4
    Overall Rating
    5

    “ Great product, I've gained a stone in 3 weeks. aaaaaaaaaby far the best weight gain formula on the market! ”

  • Effectiveness
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    “ ”

  • Jerv_2424
    Effectiveness
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    3
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    3
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    4
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    2
    Overall Rating
    3

    “ Good mass gainer, dunt mix too well in shaker tastes ok but you only in that 12lb bag gt 16 servings due to the amount of powder youre suppose to use the scoop u get with it is like a excavator! I put on 4lbs in 2 weeks with gym routine so Not bad! ”

  • Alex
    Effectiveness
    3
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    4
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    3
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    3
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    3
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    2
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    3

    “ Quite a good weight gainer, tastes fine. However it made me feel really sick 30mins after taking it which i'v never had with a weight gain suppliment. So had to stop taking it! ”

  • Effectiveness
    5
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    4
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    4
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    3
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    4

    “ Ive put on 4lbs in a week training twice a day so have to give it credit for that mixes ok with a shaker best use a blender tho taste pretty good. although i would highly recommend taking 1/2 the dose twice a day otherwise there is just 2 much powder ”

  • Jay Cutler
    Effectiveness
    5
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    5
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    1
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    5
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    1
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    1
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    3

    “ Not the easiest supplement to mix and considering it contains artificial flavouring it tastes absolutley disgusting mixed with anything, however if taken as reccomended anyone could gain a stone a month on this stuff. ”

  • Tkd67
    Effectiveness
    5
    Value
    4
    Ease of Use
    4
    Quality
    4
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    3
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    3
    Overall Rating
    4

    “ I have 2/3 scoops in milk = about 2 pints daily, with proper eating, and i gained 1 stone, in 1 month, but it does get hard to drink when your full up, day in day out, but it works, im about to buy my second load, due to the size of the bag, ”

  • Effectiveness
    5
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    5
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    4
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    4
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    5
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    4

    “ Great Product i gained 2 stone in 2 months, although i dont take the rec dose i take less, as stated it does become a chore, but does the job...you will however gain a lil fat round the waste...but good product ”

  • Dave
    Effectiveness
    3
    Value
    4
    Ease of Use
    2
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    4
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    1
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    2
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    3

    “ I bought the strawberry flavour of this and it is disgusting, you also need to mix it with a blender which makes it a pain as you cant have it on the go. it looks good on the package tho stats wise (cals, protien etc) if you can get over the taste! ”

  • Ed
    Effectiveness
    3
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    2
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    “ I cant actually comment on anything such as effectiveness yet so ignore my ratings for that. However, i started this today and the vanilla flavour has to be the WORST tasting shake i have ever,ever had. Ill stick it out and report back with results! ”

  • A.c
    Effectiveness
    4
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    2
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    “ Gd for mass although a full serving is about 2000ml of liquid (two shakers full which is a bit hefty) ”

  • Ian S
    Effectiveness
    5
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    5
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    1
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    5
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    4
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    1
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    4

    “ Great product for winter, that is if u can actually mix it! the mass you'll gain from it well out weighs any mixability and taste issues. oh and be prepared to hit the cardio hard in summer cuz with 1250+ calories a serving you'll gain fat as well ”

  • Lee
    Effectiveness
    5
    Value
    4
    Ease of Use
    4
    Quality
    4
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    3
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    2
    Overall Rating
    4

    “ Bought this product due the reviews, after using this and following weight train program, i did gain 2 stone in weight in 3 months, tate not to bad, but use blender to mix, 7 shakes a day? no chance, 3 is a real chore.... ”

  • J.b0mb
    Effectiveness
    4
    Value
    3
    Ease of Use
    4
    Quality
    4
    Taste
    5
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    4
    Overall Rating
    4

    “ The chcoclate flavour in milk taste like choc brownies its delicious! Mixes well in a shaker but you gotta shake hard for a good 20 seconds. Only complaint is its quite expensive per serving. ”

  • Darius
    Effectiveness
    5
    Value
    4
    Ease of Use
    5
    Quality
    5
    Taste
    4
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    3
    Overall Rating
    4

    “ Definitely the best weight gainer out there. Also contains creatine which is great. Only have half the serving but twice a day, you wont gain fat like that. Overall a good product. Stack with cellmass or torrent with a good protein.... ”

  • Owain
    Effectiveness
    5
    Value
    5
    Ease of Use
    5
    Quality
    5
    Taste
    4
    Mixability
    5
    Overall Rating
    5

    “ Love this product buy it every month, best mass gainer i have tried (so far), havnt gained any fat with this product, good taste, easy to drink half, gret brand, use half servings as a snack, wouldnt mind seeing how it compares to PVL monster mass ”

  • Chris
    Effectiveness
    1
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    2
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    2
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    2
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    1
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    1
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    2

    “ This is rank the taste is f@+cking horrid takes ages to digest and gives you unwanted wind when training and your post drink leaves you feeling sick for hour. save you cash and get mammoth had mass gains from it and dont leave you sick. ”

  • Effectiveness
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    “ Gta ”

  • Bob
    Effectiveness
    4
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    4
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    4
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    4
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    3
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    3
    Overall Rating
    4

    “ Great value for money,taste good,lots of calories,i only have half a scoop in a morning and it works good,i find the full amount too much. ”

  • Stewart
    Effectiveness
    1
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    4
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    1
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    1
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    1
    Overall Rating
    2

    “ Vanilla tastes awful and doesnt mi well made me nearly throw up.1st time and last time. still yet to see weight gain tho hope will work. ”

  • Richie
    Effectiveness
    1
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    3
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    1
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    1
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    1
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    1
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    1

    “ Terrible taste hard to mix, pharma gain much better ”

  • Chris
    Effectiveness
    1
    Value
    1
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    1
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    1
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    1
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    1
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    1

    “ This is the worst weight gain i have ever tried. dont waste your money it tastes fucking rank marvin. mammoth is the cheap and easy way to gain serious mass. end of. ”

  • Effectiveness
    4
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    3
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    4
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    4
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    4
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    2
    Overall Rating
    4

    “ Gained 5lbs in a month using half portions. Doesn't mix well but tastes much better than old weight gainers. Overall a good product ”

  • J Dog
    Effectiveness
    5
    Value
    4
    Ease of Use
    5
    Quality
    5
    Taste
    5
    Mixability
    4
    Overall Rating
    5

    “ Best weight gain i've used by far! I only use 1/2 a serving 3 times a day whilst training 4 times a week and after one week i've put on 8pounds (4kilos) :) ”

  • Effectiveness
    5
    Value
    5
    Ease of Use
    5
    Quality
    5
    Taste
    5
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    5
    Overall Rating
    5

    “ Aggy product, helped me put on alot of muscle quickly, will buy again ”

  • Aremkay
    Effectiveness
    5
    Value
    5
    Ease of Use
    5
    Quality
    5
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    5
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    5
    Overall Rating
    5

    “ This is excellent! ”

  • Mark
    Effectiveness
    4
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    4
    Ease of Use
    3
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    4
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    3
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    4
    Overall Rating
    4

    “ Works well i was my heaviest while on this, get banana flavour though not anything else. Tastes pretty good with ice (after mixing), be prepared for some good strength and muscle gains but beware of the extra fat too ”

  • Matt R
    Effectiveness
    5
    Value
    4
    Ease of Use
    4
    Quality
    5
    Taste
    5
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    5
    Overall Rating
    5

    “ Used 1scoop (half serving) 2 times aday and gained half a stone in just over three weeks. Choc tastes amazing with both water and milk and u can fit it in a shaker if using 400ml of either liquid. Lasted about 3weeks. Amazing product with gd gains! ”

  • T
    Effectiveness
    5
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    4
    Ease of Use
    4
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    4
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    4
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    4
    Overall Rating
    4

    “ Niceeee...im stacking with OLIMP CREATINE MEGA CAPS 1250, OLIMP ARGI POWER AND PHD ISO7 WITH COD LIVER OIL O3...and im looking animalistic :D ”

  • Uzzy
    Effectiveness
    3
    Value
    3
    Ease of Use
    1
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    4
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    1
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    1
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    2

    “ Used to be good, great taste, mixed fine in shaker but recently they changed the ingredients and now is the worst tasting weight gainer ive tried and doesnt mix well at all in shaker! ”

  • Stu
    Effectiveness
    4
    Value
    4
    Ease of Use
    5
    Quality
    5
    Taste
    4
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    4
    Overall Rating
    4

    “ Not really had the product long been using for the last few days.So far so gd i have been taking half servings twice a day,it tastes nice with water and even better with milk,mixing has been perfectly fine and i use a shaker,great product will buy ag ”

  • James Taylor
    Effectiveness
    5
    Value
    5
    Ease of Use
    5
    Quality
    5
    Taste
    4
    Mixability
    3
    Overall Rating
    5

    “ Soo good, really works, get great results fast like I gained 5kg in my first month using it and my bf percentage stayed the same at only 6%, soo happy with this stuff :DDDDD ”

  • EDDie
    Effectiveness
    5
    Value
    5
    Ease of Use
    5
    Quality
    5
    Taste
    5
    Mixability
    5
    Overall Rating
    5

    “ Great Value Great results fast, didn't gain much fat at all stayed lean..... POW in the GYM , buying another 2 sacks ”

  • John
    Effectiveness
    5
    Value
    3
    Ease of Use
    3
    Quality
    3
    Taste
    1
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    1
    Overall Rating
    3

    “ I bought the vanilla flavour and it literally makes me feel sick every time i drink it. Horrible taste & hard to mix. It definitely puts on the pounds & fills you up. I wont buy this product again due to its taste & texture. Awful. Quite cheap tho. ”

  • Richie
    Effectiveness
    5
    Value
    5
    Ease of Use
    5
    Quality
    5
    Taste
    5
    Mixability
    5
    Overall Rating
    5

    “ Best weight gainer on the market, gained 7 lbs in 3 weeks, and people that come on here crying about the taste n how it mixes, please grow a set... a complete embarrassment, as long as the gains are good there should be no problem!! ”

  • Joe
    Effectiveness
    5
    Value
    5
    Ease of Use
    3
    Quality
    4
    Taste
    5
    Mixability
    3
    Overall Rating
    4

    “ This prod does what it says on the tin! SERIOUS MASS.Ive used half serves of this twice a week,I started at around 14st at crimbo and now i weigh 17st. Good diet too! Only use half serves at a time coz your body cant take 40g protien (im a PT)! ”

  • Glen
    Effectiveness
    5
    Value
    4
    Ease of Use
    4
    Quality
    4
    Taste
    4
    Mixability
    3
    Overall Rating
    4

    “ Serious amount of high quality calories. hard to mix in a shaker but has the desired affects. take 1/2 a serving to work and then another 1/2 serving before bed. fills u right up! so be conscience of when u have it around your meals. ”

  • Russell Faulkner
    Effectiveness
    5
    Value
    5
    Ease of Use
    5
    Quality
    5
    Taste
    4
    Mixability
    4
    Overall Rating
    5

    “ I went through a lot of protein shakes and when I found this.. BLAM on went the weight! Great product if your looking to bulk up!! I don't know why so many reviews complain about the mixability - I drink it from a shaker daily (no blender involved) and it's fine, just give it a good old shake - Don't be shy with it!! ”

  • Tom
    Effectiveness
    5
    Value
    5
    Ease of Use
    5
    Quality
    5
    Taste
    5
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    5
    Overall Rating
    5

    “ Best protein out there for bulking. I hear a lot of people saying how bad it is for you because of the amount of carbs in it, but out of the 250g of carbs only about 20 of it is sugar and 50g of protein which is a great ratio, you donít want a heavy weight gainer with all these simple sugars in it and with this gainer its perfect for gaining weight or meal replacement if youíre on the go a lot. Taste is great, only tried the chocolate flavour just tastes like chocolate milk. I donít understand why people are saying it doesnít mix well in a shaker because it does! Obviously people arenít shaking it enough. I highly recommend this supplement if you want to put on some serious mass! Also you donít usually get all the vitamins in a protein shake that you need because they canít fit it in but in serious mass they have. Canít say anything bad about this product. Great Taste Great value Great source of calories, carbs and protein. ”

  • Ashley
    Effectiveness
    4
    Value
    3
    Ease of Use
    4
    Quality
    4
    Taste
    5
    Mixability
    3
    Overall Rating
    4

    “ Iv tried loads of different proteins over the years but i really like this product and have been usin it for the past 7months. since using serious mass i have put on over a stone and a half in weight and bulked up. as long as your using the gym properly and taking this at the right time you should see a noticable difference. the chocolate flaviour is probably the best for taste. ”

  • AN60TWO
    Effectiveness
    5
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    5
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    5
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    5
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    3
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    3
    Overall Rating
    4

    “ Put on some serious weight on this gainer! Doesn't mix well so put it in a blender... Some stupid comment on here !! Its a gainer, they all taste rotten... This one isn't that bad !! so get over it you bunch of little girls !! ”

  • Peter
    Effectiveness
    5
    Value
    5
    Ease of Use
    5
    Quality
    5
    Taste
    4
    Mixability
    3
    Overall Rating
    5

    “ Good gainer: I split the serving in two and had one first thing in the morning and one in the afternoon. You shouldn't put much fat on if you control the food you eat. Stuffing your face and taking three servings of this a day will make you the size of a house. ”

  • Blounty
    Effectiveness
    1
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    1
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    1
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    1
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    1

    “ ”

  • Angus F
    Effectiveness
    3
    Value
    4
    Ease of Use
    4
    Quality
    5
    Taste
    5
    Mixability
    4
    Overall Rating
    4

    “ Good quality mass gainer, probably would need to gym everyday / exercise 2 muscle groups a day to make more use of it. Loads of calories, which is good for a hard gainer like myself. It mixes okay I found best to LEAVE IT TO REST AWHILE AFTER YOU SHAKE IT. Also it asks you to add it to 700ml of water or milk..... Nobody has a shake that big to hold the monsterous serving size and 700 ml, 500 ml worked fine ;) .. It's a good product and will be buying again. ”

  • Paul Mason
    Effectiveness
    5
    Value
    5
    Ease of Use
    4
    Quality
    5
    Taste
    5
    Mixability
    4
    Overall Rating
    5

    “ This is the first mass building shake i've bought and i'll never buy a different one. I have bought 2 packets now and have packed on about 6kg in 2 months now with some still to go. Yes it is thick and takes a bit more time to mix, Got a blender and its fine, mix in 2 scoops of peanut butter and its like drinking a snickers bar! No blender just put milk/water in shaker first and just add the powder in a bit at a time shaking it before adding more powder. Fully intend on buying a third packet very soon! ”

  • Kyle
    Effectiveness
    3
    Value
    4
    Ease of Use
    2
    Quality
    3
    Taste
    3
    Mixability
    2
    Overall Rating
    3

    “ This product although containing high amounts of calories, carbs and protein, I found it very difficult to take one entire serving at once. This meant I had to take 1/2 servings which I felt wasn't giving me the amount of calories I was wanting in one 'meal'. I tried using this product after previously using Pro Elite X-Force Mass Gainer. After using both the products I felt that I had made better progress using the X-force than Serious Mass. You have to use a blender to mix this product as it is very thick and one full serving will not fit in one shaker making it somewhat inconvenient. Albeit it a good product overall, I believe that there are better alternatives on the market. ”

  • Matt Hughes
    Effectiveness
    4
    Value
    4
    Ease of Use
    4
    Quality
    3
    Taste
    1
    Mixability
    2
    Overall Rating
    3

    “ I used this more as a meal replacement rather than a mass gainer. I found it effective in maintaining my weight, and I would expect this product to build mass if used as a supplement rather than a mass gainer. strawberry flavour taste's horrendous!!! I would reccomend using a blender to mix this product as mixibility in a shaker bottle was poor. overall a good product to aid with gains in mass ”

  • Jayb
    Effectiveness
    5
    Value
    5
    Ease of Use
    5
    Quality
    5
    Taste
    5
    Mixability
    5
    Overall Rating
    5

    “ The chocolate tastes and smells a bit like cocoa powder. Really nice. Mixes well in water using a shaker with one of those metal spring balls inside. I weighed 8.5 stones. After using serious mass HALF SERVING for 3 months i put on half a stone, ontop of that i also worked out and took the shake straight after a work out. This stuff is amazing, i have tried so many other weight gainers but by FAR this is the best so far by MILES. ”

  • Shakeel
    Effectiveness
    5
    Value
    4
    Ease of Use
    4
    Quality
    5
    Taste
    4
    Mixability
    4
    Overall Rating
    4

    “ The product is amazing for building on mass i put on atleasthalf or 1 stone on.This literallyworks ”

  • Jacque
    Effectiveness
    3
    Value
    2
    Ease of Use
    3
    Quality
    1
    Taste
    1
    Mixability
    1
    Overall Rating
    2

    “ Too carb heavy, mixes like chalk and tastes worse still. ”

  • Rory
    Effectiveness
    4
    Value
    4
    Ease of Use
    4
    Quality
    4
    Taste
    5
    Mixability
    4
    Overall Rating
    4

    “ Great product been using it for several months. Great tasting one of the few supplements I like the taste of. Definately need a blender to mix as a shaker will not work. ”

  • Ellis
    Effectiveness
    4
    Value
    4
    Ease of Use
    5
    Quality
    4
    Taste
    5
    Mixability
    4
    Overall Rating
    4

    “ Having tried quite a few products on the market over the years, I have found that ON serious mass is a great quality product for hard gainers like myself, easily one of the best in its respective field on the market, if used properly under the guidelines shown on the bag (I use 3/4 half servings a day) which will last me around two and a half weeks which compared to others isn't that long so i put the value down a star because of that. the taste is great don't get me wrong - any of the 3 flavours available to order on here are, but bag after bag of the same flavour can become boring after having four of the shakes a day everyday, so a bit of advice would be change flavours every now and then so you dont become bored of it. The mixability of the product is alright i guess, not as bad as someother products but takes around a min and a half/ 2 and a half mins of none stop shaking with shaker cup. and now the quality... well it is very good as its job of making you put weight on, with a good high calorie diet, but after taking 3/4 half servings a day ( which becomes a bit of a chore), in the last 2.5 months ive put on 2.2 stone, which isn't bad but after the amount of shakes i have taken i feel that it should do a bit more. ”

  • Aleksandar
    Effectiveness
    5
    Value
    5
    Ease of Use
    4
    Quality
    2
    Taste
    5
    Mixability
    5
    Overall Rating
    4

    “ This is one of the best gainers on the market at the moment, althought it's a bit expensive... Aside of that this works. You get a huge amount of protein and carbs. Great for bulking! ”

  • Craig
    Effectiveness
    5
    Value
    4
    Ease of Use
    5
    Quality
    5
    Taste
    5
    Mixability
    4
    Overall Rating
    5

    “ Best weightgainer In the market cheapest on this website great results use half serving dies the trick to make it last longer, will keep on buying on serious mass with uz guys cheers ”

  • Joe
    Effectiveness
    3
    Value
    4
    Ease of Use
    4
    Quality
    4
    Taste
    5
    Mixability
    4
    Overall Rating
    4

    “ Best tasting weight gainer out there. Like with all hard gainers its really hard to gain weight even with taking products. Optimum nutrition recognise this and their products are the best on the market right now. This product works but takes 3 months to notice and see the weight pile on thats better than other products that just gives you water weight. This product is slow and steady unless you are in competition theres no rush. ”

  • Zak
    Effectiveness
    5
    Value
    5
    Ease of Use
    5
    Quality
    5
    Taste
    5
    Mixability
    5
    Overall Rating
    5

    “ I have tried many mass builders but this is by far the best. Chocolate is my favourite as when i get a sweet tooth and start to crave chocolate this is what i can turn to. Its easy mixed with other supplements and is great for putting on weight if you're an ectomorph struggling to add mass ”

  • John Boyle
    Effectiveness
    5
    Value
    3
    Ease of Use
    3
    Quality
    4
    Taste
    3
    Mixability
    3
    Overall Rating
    4

    “ Put on 2.5kgs in 16 days, taking it once a day. Hard to eat after as it is very filling. ”

  • Scott McAnna
    Effectiveness
    5
    Value
    5
    Ease of Use
    5
    Quality
    5
    Taste
    5
    Mixability
    4
    Overall Rating
    5

    “ Ive been using this product for 2 months, 2 shakes a day training 5 days a week and the gains i have seen have been amazing, better than any other mass product i have tried before. definatley going to keep using this. ”

Show More ReviewsShow All Reviews
Customer Questions
  • "How many grams of creatine monohydrate and glutamine peptides are there per serving ?"
    in optimum nutrition there is 1g of creatine monohydrate and 500mg of glutamine peptides per serving. all the best with your goals Andy Robinson ANB U18's Mr Britain 2003
  • "At the recommended serving of two heaped scoops how many servings will I get from a 12lb bag? The reason for this is I would like to buy a months worth every time plus some extra protein. thanks steve p.s. could you hurry up with the answere as I am not at home."
    16servings in a bag, All the best Andy Robinson www.monstersupplements.com
  • "Which is the best weight gainer on the market and how many times a day should it be taken?"
    serious mass is a good weight gainer, best times to consume are first thing in a morning and after training. All the best Andy Robinson www.monstersupplements.com
  • "May somebody tells me(since i'nn latin) what these guys mean when the used the word "stone"? menas pounds? kilograms?..or what? other thing...i'm using this product and now i'm scared i'll get fat in my waist...will these happen? i'm 30 yo, im in good shape but i want to gain muscles not fat...is this the right product?"
    This is a mass gaining product, it is just to gain weight, you require a Whey protein to gain lean muscle, a stone is equal to 14 pounds. Yours in Health Simon@monstersupplements.com
  • "I am using bsn no-explode can i use serious mass along no- explode as serious mass also contains creatine in it?"
    Hi Sandeep, Thank you for the question; You could use then together although they both do contain creatine. I would suggest maybe Pharma Gain instead. Best Regards Mark Team Monster www.monstersupplements.com
  • "Should Serious Mass be taken with milk or water?"
    Hi Conor Thank you for your question.It can be taken with both but would tast better with milk. Kind regards Danny
  • "Hi I am 75kg 11stones and 5,11" I am 18 and tonned but I would like to gain about 4 stones of pure muscle... I train 5 days a week like crazy but when it comes to eating I only eat about 2 or 3 times a day and healthy food only like oats and grilled chiken,and I drink optimum protein after training. I want to take MASS optimum to gain more muscle mass. Now I am not skinny and can easily gain weight and loose it but the problem is I dont really eat that much... Do you think if I start taking MASS gainer only 30grams per serving will it make me fat I will drink it with water and I eat about twice a day, will I loose my six pack? and my defenition? and I will start cardio 2 month before summer remember I exercise hardcore and never miss my training I just dont lk=ike to eat! Thanks p.s. sorry for such a looooong question"
    Hi Thank you for your question.No not if your using it to replace meals.To gain that sort of mass you still should be eating quite a bit and taking protein and the mass gainer. Kind regards Danny
  • "How many serving are there per bag thanks adam "
    Hi Adam 140 per bag Kind regards Danny
  • "What flavours does this come in? Regards Christian"
    Hi Christian Strawberry, chocolate and vanila. Kind regards Danny
  • "It say's 1 serving is 2 heaping scoops but is a heaping scoop 1 hole cup with the cup that is provided?"
  • "Hi, Im trying to gain more muscle mass while not losing my tone,i train with a mixture of cardio and weights so hopefully the extra calories aren't going to be a problem im trying to decide between this and pharma gain, which do you recommend? "
    Hi Nick I would recomend phd pharma whey. Kind regards Danny
  • "Hi, How many servings (2 heaped scoops) a day would you reccomend and how long would 1 bag last for using that amount of servings per day? Thanks for your time."
    Hi Jack Yes 2 scoops per serving. Should last 6-8 weeks. Kind regards Danny
  • "How many scoops/gms(the whole cup in the container) am i supposed to take in a day? how long will 6lbs of serious mass last if I take 3 whole cups a day..?"
    Hi CJ Should last 6-8 weeks Kind regards Danny
  • "If i wanted to take this product twice a day on a full serving, how many would i have to buy?"
    Hi Ferris A bag should last you about 6 weeks. Kind regards Danny
  • "My goal is to gain muscle Could serious mass be combined with phd synergy safely and if so when should I take them "
    Hi Danny Yes your fine mixing them. Kind regards Danny
  • "If i want to take a full serving 3 times a day. how long would the 12lb bag last me?"
    Hi Ferris 4-6 weeks Kind regards Danny
  • "One question about this product was from nick,( would this be ok to gain muscle but stay toned). your answer was to take phd pharma whey.im taking op gold standard whey at the moment and was thinking about taking serious mass to gain a few pounds. i would like to keep my toned stomach,would it be ok to take?"
    hi Shaun, if you want to stay toned and build lean mass i think you would be better with a less calorie dense formula try PhD synergy twice a day on traing days, one seving after training this should help you out alot, Thanks Joe
  • "Er, im confused as to how many servings there are per bag. One answer says just 16 and another 140! Thats a huge difference! Whats going on?"
    Hi Neal There are 36 servings per bag. Kind regards Danny
  • "Any ideas when the choc will be in stock?"
    Hi J Ford It will be back in stock tomorrow morning. Kind regards Danny
  • "Hi i was just wondering why this stuff comes in a bag. I have seen it on other websites where it comes in a tub."
    Hi Mike Its a large size. You wont find many 12lb tubs.
  • "Is this product safe for a woman to use? "
    Hi Cathy Yes you are fine with this. I would also have a look at phd pharma gain. Kind regards Danny
  • "Hi, I am 23 years of age, 155 cm height and weigh 110lbs. I been underweight for the last 22 years. I just bought Optimum Nutrition's Serious Mass. I am worried about the side effects. I have heard that consuming such proteins may damage the kidney or even your sexual life. For What period can i consume them safely. Please guide."
    Hi Kisan I would not worry. You need to eat about 300 grams of meet per day before it will be a problem.
  • "Im 27 and have been slim most of my life , i find it hard to gain weight ..also i have a very active job which is like an 8 hour workout per day which does not help with me burnig cal fast. i have be taking opt nut serious mass for a wk, and was wondering if it would be ok to take phd synergy iso with it? .. and when and how to take togethere.. kind regards phil "
    Hi Phil I would start with a mass powder. You should try eating every 2-3 hours. Kind regards Danny
  • "Hey i was wondering which one is better the serious mass or mammoth but with intensity and mass also how long would it last some say 140 servings a bag and some say 16 ?"
    Hi I would go for the ON. You get 15-16 servings per bag. Kind regards Danny
  • "Hey its me again lol you think that ON is better than mammoth or you know of people who have used both? and how long you think 15-16 servings would last"
    Hi If you are a really hard gainer I would may be try the mammoth. But it has to much sugar in it for my liking.
  • "Hi, i recently bought this product but have yet to see gains. I was wondering is one serving 2 heaping scoops (334g each) or is one serving just one heaping scoop? Also should i take two heaping scoops daily, or four heaping scoops daily?"
    Hi Ross No 2 scoop is one serving. I would take 2 servings per day. Kind regards Danny
  • "Hi it me again lol so you think mammoth gives better results?"
    Hi The Mammoth is for really had gainers. KInd regards Danny
  • "Hi,the best times to take ON serious mass is in the morining and after a workout.the only time i get to the gym is late in the evening and would not get finished till about 9pm r 9:30pm. is this to late 2 be taken serious mass? and would i put on extra fat because of this? r should i take it at a different time?"
    hi glenn. serious mass in my opinion is the best bulking weight gainer there is. due to the high calorific content you are going to put on alittle fat anyway so i wouldnt worry about that. the key thing to this product is the fact that it has a blend of different types of protein in it. this means that it is good to take at any time during the day. it contains whey concentrate which is fast digesting and great to take in a morning and after a workout, but it aslo contains casein which is the slowest digesting and perfect for before bed as it will digest all through the night. in essence you can have them all through the day and they will have a good effect nomatter what. best regards adam
  • "Hi,should i take serious mass on my days off from training? and if so should i take a half serving r a full serving."
    hi glenn, i would definately take it on my days off. its rest days when your muscles recover and use the protein stored in your body to repair the muscles. intaking protein on your rest days is a necessity. as far as the serving size goes i only ever have half servings of serious mass because a full serving is just too much. if you can have 4 half servings a day rather than 2 full servings i would definately recommend that. that way your body has a fighting chance at digesting all of the protein content. best regards adam
  • "Hi, when im taking sreious mass when im training should i stick 2 doing 6-8 reps of my heaviest weight,are would it be ok to do dropsets and supersets in my training session? whats the best type of training session when building muscle?"
    Hi Glenn Are you training for mass or are you cutting up? Kind regards Danny
  • "Hi,when im taking serious mass when im training should i do 6-8 reps of my heaviest weight are is it ok to do a few dropsets and superset in my training session? im training for mass? wat would be the best type of training progam for this? got any ideas?"
    Hi Glenn I would warm up and go for 6-8 reps. Also spend alot of time on legs and core training. Kind regards Danny
  • "Hi, does serious mass help you pack on muscle? are fat? you hear people from the reviews tat they put on 1 stone in a month, is most of tat fat r muscle?"
    Hi Glenn Its all down to your body type really. Kind regards Danny
  • "Hi, im on a serious weight gain mission and im debating which supplement will give me results quicker and deliver the most calories, ive used serious mass in the past and it workd great for me but what do you think of mammoth 2500 in comparison to this? "
    Hi Eiro I would go with the serious mass. Kind regards Danny
  • "Hi sir, i am using nutrition serious mass, please tell me how to consume it post work out or after workout? Is this increase musle ? Regards "
    Hi I would recommend taking a 150 gram serving post training. Kind regards Danny
  • "Hi! I m using serious mass for last 1 week i want to know that how many days it takes me to gain weight my height is 5.10' my weight is 54 kg pls help me know best.Thanks"
    Hi Its hard to say. Everyone is different.
  • "Hello im 17 years old is this supplement safe for me to take?"
    yes this is safe to take it is simply protein and alot of carboihydrate. Thank you JB
  • "Are there any side effects related with serious mass?"
    Serious Mass is very calorie dense, you will not get any side effects as it is a straight protein and carbohydrate split. This will just give you more calories. thanks JB
  • "Hi im 5'9, 150lbs. I want to gain more weight and build muscles that's why i took mega mass 4000. i just took it for two weeks and it has side effects on my body. i asked my trainer if i can take other protein drink and he suggested optimum whey. i did not know about serious mass back then that's why i bought optimum whey instead. i'm taking it for almost three weeks now. im planning to buy serious mass for faster weight gain. can i take both of them at the same time (because i still have 5lbs of optimum whey left) or i just keep the optimum whey for future use? if ever what is the suggested use? i go to gym 4 times a week. sorry for the long question. im really looking forward to your answer. thanks a lot"
    Hi i would just use the serious mass post training and a half serving between meals, if you are not getting protein from your diet then use the whay too, this would be ideal in a morning with breakfast and just before bed, thanks JB
  • "Hi! i'm doing 3 sets, 15 reps with supersets in chest & back area.. the rest are 3 sets, 12 reps.. is it really ok to do 15 reps when gaining mass? i have doubts about the new program my trainer gave me that's why i want to get second opinion. hope you could answer my question. thank you"
    Hi if you are looking to gain mass then you are better off warming up and stretching for 10 minutes and doing a warm up set of 12-20 reps then going for heavy sets with good form. 3 sets of 6-8 reps is better for building mass, focus on compund movemnets, squat, deadlift and bench press are all great mass building exersizes, thank you Jb
  • "Hi if i take the max recomended amount that will give me 3700cals a day how long will a 12pound bag last"
    if you were wanting 3 shakes a day it will last about 5 days. best regards
  • "Hi i'm i'm about 11 and half stone and i want to put on at least 2 stone over the summer,i'm goin to take usn 19anabol testo as recomended by your staff,would this be the best gainer or are there better products out there?thanks josh"
    Hi Josh i would go for the muscle fuel anabolic by USN along with PhD Pharma whey, keep that protein intake high, thanks
  • "Hi, im about 5ft11 and about 9stone so im quite thin, i want to get upto about 10.5 stone and gain muscle, would it be ok to take ON serious mass and ON %100 Whey protein gold standard ? please let me know if this would be good to take with each other"
    Hi Yes these will be absolutely fine to use together, enjoy them
  • "Hi, Im around 5'7 and weigh about 10 stones.. im looking to gain a bigger size without putting fat on. Im toned up but just need to increase size really.. would this be the product for me? I've tried masstech which lasted me around 7 days but didnt see much difference. "
    Hi yes this is a more cost effective option, thanks
  • "Hey, just wonderin in a nut shell, how many servings in the 12lb Bag of SERIOUS MASS, and how long will it last, also have been on Critical Mass for the last month, and have gained really well frm it 1stone in 1 mnth, wamted to try something a bit heavier and more gaining, How many servings should i take per day. Thanks Steve O"
    Hi steve one serving per day shpuld help you alot
  • "I want to gain weight and strength and was wondering which product to take. i was thinking of taking serious mass before and after and cyclone bars after.Could you recommend another product or products to help reach my goals "
    Hi i would go for methoxy 7 test too this will give you some added strength and allow your supplements to be utilized better
  • "Could i take serious mass before and cyclone after to help increase creatine levels and glutimine and would it be worth doing it this way .meaning will it work"
    Yes you can use them this way, dont use the serious mass within 45mins of training though as it may effect your training being so calorie dense
  • "I started my body building from two days and it's my first time, so i want to ask that if i have to wait and spend more training in body building and then taking serious mass, let's say after on month or I can take it right now?!!! and whay do you recommend? "
    Hi i would start using it straight away i would have started off with a protein only but if you want mass then this will be fine, welcome to monster good luck and enjoy building a better physique
  • "Hey there, I have purchased the 12lb Chocolate flavor of the ON Serious Mass. I have started with just 1 scoop a day. I seem to have a weak tummy and after taking the very first dose I ended up with severe diahorea. I have taken an equivalent weight gain supplement from another manufacturer and it did not affect me. Is there any ingredient in ON Serious Mass that could cause this problem? Thank you for the help..."
    HI What are you mixing it with?
  • "Hi after using serious mass for 4 days, I got tired and went to hospital after blood test there they found that CREATINE KINASE is soooooooo high around 8450 U/L which supposed to be from 24-190 U/L what's going on? and they told me that i have to stop it as soon as possible. "
    The elevels of creatine in this are not too high, but if your levels are high then any supplement containing creatine is not advisable, look at gainers that are creatine free like Phd Pharma gain, Reflex intsant mass and mammoth, thanks
  • "Hi. im 17 and my stack is Optimum Nutrition Serious Mass, optimum nutrition whey, cre 02 by mellenium sport tec and animal pak multi-vitamin..is this safe for me? my aim is to add muscle mass(bulk up)"
    Hi Bob, yes this is absolutely fine, it sounds like a nice stack indeed ideal for adding mass.
  • "Hey can i take serious mass as well as whey protien toghether ? i mean to complete my daily protien requirement"
    Hi Yes definately, serious mass is best after a hard training session and you can use whey throughout the day for sure.
  • "Hi iam 23 and my weight is 48 i built slim from the childhood i need to put on my weight plz help"
    Try using something like phd pahrma gain 3 times per day this will definately help
  • "Hi i am 17 years old how would you suggest i take all these supplements on a training & non day, btw i train 9am in the morning. Optimum Nutrition Whey Optimum Nutrition Serious Mass animal pak multi-vitamin MST Cre 02 thnx.!! "
    Hi bob i would have a half serve of serious mass upon waking with multi vits and cre 02 and a full serving after training, use the whey during the day between meals, on non training days just have two half servings of serious mass between meals and the whey upon waking and before bed, use cre 02 one cap with each meal and the multi vits in the morning again.
  • "Hello, Im interested in buying the 12lb bag but im a little confused, in some questions your saying it has 16 servings and some questions your saying it will last 6-8 weeks, if i want this product to last 4 weeks whats the best way to take it and still put on some weight? im also taking phd creatine and phd l glutamine,"
    Hi i would advise taking a half serve every day if you need 30 days supply, thats the only way to do it, you can teke with milk if you desperatly need extra calories. Thanks
  • "How long does this product last you taking ne serving a day. scoop in the morning 1 scoop in the evening?"
    there are 16 servings per bag. at 1 serving per day that equals 16 days worth of use. -ac-
  • "Does 1 scoop equal a serving"
    No 4 scoops is one serving.
  • "I am getting very confused... you say that a 12lb bag of this product is 16 servings? then you say 140 servings then you say 36 servings? you guys know how to confuse people, at 16 servings this product isn't worth it."
    There are 16 full servings! You may not always need a full serving though, so a half serve at a time would mean that you get 32 serves per bag but @ 4 scoops you get 16 serves!
  • "Confuse again... you just told me that 4 scoops = 1 serving? but i got a quote from you guys saying "Hi Jack Yes 2 scoops per serving. Should last 6-8 weeks. Kind regards Danny" you guys keep giving different answers is 4 scoops a serving or 2"
    1 full serve = 4 Scoops. Danny had spoken to this customer earlier and told him he only needed half servings as he was a smaller individual with lower calorific requirements!
  • "Hello, im taking this product at 1 serving per day split into 2 half servings, when would be the best time to take this? im assuming after workout and before bed, i workout at 7am in the morning, Cheers John"
    that is a very good idea. immediately after training is the most important time. for mass building you can jsut take in between meals or before bed is also a good idea. -AC-
  • "IS serious mass safe for health ? did he make anything in the stomach or liver , or in future , i ask some pharmaci they told me its not good for health so know im confuse , so plz unswear me the right answear plzzzzzzzzz ?"
    yes it is a safe product. it is a blend of natural carbs and protein. there is nothing unsafe in it. as long as you are not taking 5 servings a day you will be fine. -AC-
  • "Is it common to feel a bit sick or bloated after taking this product for the first time? I used water and mixed it in the blender. "
    it is a very calorie dense product and has the same nutrients as a very large meal. i would recommend sipping it and taking at least 3-5 minutes to drink it rather than downing it quickly as it is a lot to go into your system all at once. -AC-
  • "Is there any side effects of serious mass on kidney or any other part of the body?"
    no serious mass is just basically protein and carbs withqa small amount of creatine. it poses no health risks. -AC-
  • "Hi there please can you clarify the usage of this product? I have been using 1 scoop in 350ml of milk 2-3 times a day, is this alright to build mass, otherwise there is just too much for me to digest! currently weigh just over 10st. cheers"
    that will be absoloutely fine. i wouldnt recommend having a full serving in one go as its jsut too much powder. stick to what you are doing and eat plenty of calories from your diet and you will see good gains. -AC-
  • "Hey, I am looking to get a new weight gainer. I am currently on 6 meals a day, and I am 10.7 stone. If I take a scoop (half serving) of this as one of my meals wouldn't I be taking way too much carbs for that meal...? Or is there any other gainers you recommend ? Thanks"
    no this would not be too many carbs for one meal. i would not replace meals though if increased mass is your goal. have your 6 meals and then 2 of these as well. -AC-
  • "Hi guys, what would you say is the best weight gainer you stock?"
    the serious mass is one of the most effective as it is the highest on calories. other good gainers include, CNP promass, phd pharma gain, applied nutrition critical mass and USN muscle fuel anabolic. -AC-
  • "Whats the price of this product because in a recent.. magazine from monster supplements it said it was 35 but here it says 43? "
    all prices are correct on the site. -AC-
  • "Hi, Im quite confused when to take Optimum Nutrition Serious Mass . Do i take it upon waking? but in that case i feel too full up to eat breakfast. Ive read that i can take half a serving, but that is still about 625 calories per drink. Im roughly on a 3000 calorie per day bulk plan. Whens the best time to take, is it a meal subsitute? can i take it pre or post workout? or just before bed. I seem to be going over my caloric limit since ive been taking this. Thankyou!"
    i personally would take it post-trinaing and in between meals. however if it is making you too full to eat use it before bed. if you are going over your calories it may not be a bad thing as 3000 is still fairly low for bulking. if you start to add unwanted fat then cut back on the unneccessary calories. -AC-
  • "I am 23, 180 lbs, 5'7 feet. do recommend that i take this to convert my fats to muscles? "
    the serious mass is a good product for increasing mass. this can increase fat slightly as well as muscle. turning fat into muscle is impossible. if lean muscle gain is your goal then use a whey protein that does not contain so many calories. -AC-
  • "Hi, I am currently on a mass gain regime and am a hard gainer. Have recently just come off the N-Large 2 which i'd been stacking with Reflex Micro Whey to get some added protein content in my diet. N-Large seemed to work well and provided good gains over a 3 week period. I just wanted to ask whether this is a better quality product than N-Large 2, and can it be stacked with Reflex Micro Whey. Also could you advice me of any other whey products suitable for stacking with a Mass Gainer, and if this is recommended. "
    no the serious mass is lower quality than the N-large. if i were you i would stick with prolab. stacking mass gainers with protein is a good idea and will save money. -AC-
  • "I used 6lbs serious mass and find the scoop is too big so is it recommended to use 2 scoop a day as its too big i think so."
    i would recommend having only half a serving size in each shake. -AC-
  • "I read that Total Calories are 1250 per serving, are these Calories in two heaps or one heap serving."
    this is the calories in 2 scoops. -AC-
  • "Hi there i have just bought myself some serious mass i was just wondering how much do you take per seving "
    it is recommended 2 scoops per serving but i personally would jsut use 1. -AC-
  • "Howmany servings do you get from two shakes a day"
    you get 16 servings per bag. at 2 per day thats 8 days worth. -AC-
  • "Wich is better PVL mutant mass or this ? and is it a good idead to keep on changing ur weight gain powder ?"
    i personally prefer the mutant mass due to better quality of ingredients. -AC-
  • "Can you still work on getting a six pack while on serious mass?"
    no. you will most likely lose anything close to a 6 pack very quickly. -AC-
  • "What is the best way to take him for getting more height?"
    this is a joke right? serious mass wont make you taller.
  • "Why after take serious mass whole body become itchy?"
    you may be allergic. -AC-
  • "Can a 16 yr old consume tis product called serious mass"
    yes you will be fine. -AC-
  • "How much money I have to pay this serious mass 5.45kg by converting to Indian Rupees?"
    we do not trade in indian rupees im afraid. if you would like to know for personal reasons i recommend checking the current exchange rate. -AC-
  • "Hi, I'm looking to buy this product. I go to the gym 4-5 times a week and work mainly on my arms, chest, shoulders and legs, how many serving should i have a day?"
    take as many as your diet requires. do you not train back? -AC-
  • "Will this add mass to my whole body or just my gut?"
    you will add mass everywhere
  • "Hi ive been told that serious mass and dymatize are the best weight gainers on the market. Could you give me some advise on which product would be most suitable for someone who wants to pack on the pounds (lean muscle mass) not fat lol"
    for lean muscle i would go with phd pharma gain or reflex instant mass. the serious mass and dymatize are full of too many sugars. you will likely add fat. -AC-
  • "Hi, instead of taking two scoops of serious mass with 650ml of milk, would I still gain mass if I only used one scoop with half the amount of milk. Many thanks. Jag"
    Gaining mass completely depends on your diet. if you are intaking enough calories then you will increase weigh. Best regards -Ac-
  • "How many serving are inthis bag ?"
    HI Phil, There are 16 servings per bag, I normally have half a serving to make the bag last longer. Abraham
  • "Alrite summer is comeing to a end now so i want to start gaining weight and muscle wot is the best weight gainer on the market and do i need to take any other suppliments with it. Then when the summer comes i want to rip up and lose the weight but keep the muscle what suppliment do u recommend for this many thanks Adam"
    hi adam. the serious mass is a good mega calorie gainer but is likely to add fat. look at reflex instant mass or phd pharma gain for a gainer that is better for lean muscle gains rather than adding fat. Best regards -AC-
  • "I am 5 8" and weigh 186lbs, I'm trying to shed the fat around my stomach, but want to build some muscle mass as well. As a hard gainer I'm not seeing any results with the other shakes I have taken, so I am considering a weight gainer, my issue is will it aid in muscle mass development or due to the high calorie content will it cause an increase in fat?"
    hi dan. if you take a weight gainer there is no way you will ever lose fat. you will possibly put on muscle faster but you will also put on fat. Best regards -AC-
  • "I bought Serious Mass, you saying take it two times a day (morning and after workout) I woke up around 10am and work out around 3pm? isnt the difference in time so close ? pls tell me the best time to workout. thanks"
    Hi Hossam The times mentioned are fine to take these products. Kind regards -IE-
  • "I bought Serious Mass, you saying take it two times a day (morning and after workout) I woke up around 10am and work out around 3pm? isnt the difference in time so close ? pls tell me the best time to workout. thanks"
    Hi hossam, Thats perfectly fine to have your shakes. Best regards -IE-
  • "Hey ! I'm 17 and a bit underweight... I was wondering if I could still develop my abdominal muscles while using serious mass? If not, what other product can I use to still be able to work on my abdominal muscles and still gain mass to develop other muscles ? thanks :) !"
    hi kimo. you cant lose fat and build muscle at the same time. if you took serious mass you would probably get bigger but you would also most likely get fatter as well. you can train your abdominal muscles whlst taking serious mass and they would probably get stronger and more developed but they would not be showing. Best regards -AC-
  • "Is this safe for people with diabetes? regards"
    Dear Jack, This is safe for diabetics, however it has got 20g of sugars in per serving so i would use carefully. Ask a doctor if your unsure. Kind Regards Dave
  • "Hi im 16 and i want to buy serious mass to bulk up and to add weight i have a big diet is serious mass the right product to bulk up and put weight on ? thank you "
    Hi Matthew, If your diet is good and you are just looking to add calories then serious mass is a great way to get those extra calories in! Kind Regards, Josh
  • "Hi, im 16 and 67kg so quite thin. Im looking to add bulk but in hard muscle and not fat, would serious mass help with this or do you recommend a different product for gaining hard muscle?"
    hi there-id concentrate on overall bodyweight as well as muscle if you are thin-id eat plenty of high carb ,high protein meals and use this in between as its an ideal choice.
  • "Please clear this up . one of your staff below says there are only 16 servings in this and another says over 100. So which one is it??"
    Dear Alejandro, There are 16 servings in this if you are having full 2 scoop servings, however half servings would give you 32 and 500 kcals and 25g protein. Kind Regards Dave
  • "Hey i am 16 and 6'1 i have been using pharma gain but not good results i was thinking of getting this , i have a bit of fat i.e near my belly and around , i was wondering with a good diet and weight training 3x a week is there a mass gainer that i could use to turn my fat into like hard mass or muscle i dont want to loose weight i want to become more bulkier ? which products would u reccomend ? ty"
    hi there-this product is an excellent weight gainer used by those wanting to bulk up there overall bodyweight,you cannot actually turn body fat into muscle so id focus on one goal at atime-either bulk up all over,which unfortunately means having to bulk up slightly around the waist,or simply increase your cardio,decrease your calories especially from carbs and fat and lean up first then think of gradually building lean muscle mass-but again for overall bulk,the pharma gain or serious mass are both excellent-thanks ian
  • "Hello i just wanted to know when are you going to chocolate flavor supplement? thanks"
    Hi Jason, Thanks for your email. The Optimum Serious Mass should be back in stock within the next week. Yours in Health, Josh
  • "Hi do you know when you are going to get any Optimum Nutrition Serious Mass in chocolate flavor?"
    Hi Ketan Many thanks for your enquiry. The erious mass chocolate is on order and should be with us in the next 10 days. Kind Regards Katie
  • "Hi i am just below 6ft and weigh about 9st 7 and i want to gain weight as well as muscle but i dont want to be fat just tonned would it be best to take this and work out say 3 times a week or take a higher protein shake??? thank you"
    Dear Stackedjake, This might be an ideal product if your wanting to add mass, it may add a little more fat than your used to but you would need to add this to gain muscle. If you was worried about fat you could do a bit of cardio. Kind Regards Dave
  • "Hi I am a hard gainer and i always have been. This is probably because i play around 2-3 hours of field hockey or gym a day. would this help me gain weight as well as giving me the carbs i need and if not what to you suggest? thank you "
    Hello Jake, This would be an ideal product if you are burning a lot of calories each day. It contains a high qualnity of carbs and protein which will help you with your calorie needs. Kind Regards, Omar.
  • "How many calories per one serving. also for gaining mass it would be better to take a half dose in the morning and another half after tea/gym ??? and can you piss out calories like you can protein if you do not burn it off?? thank you jake,"
    Hello Jake, You cannot urinate calories. Calories are units of energy. There are 1250 calories in a serving of serious mass, taken with water. You could halve this if you liked. That times you suggested would be perfect. Kind Regards, Omar.
  • "Does this product contain testosterone boosters? "
    HI Km Many thanks for your enquiry. This product does not contain testosterone boosters. Kind Regards Katie
  • "Would you say there was too much sugar, per serving, in this product?"
    Dear Jay, That depends on your body type really. If your sensitive to high sugars/carbs then yes i would say there is. It is however an ideal post workout shake for anyone Kind Regards Dave
  • "Does this product contain testosterone boosters? 29 grams per serving is a little high isn't it?"
    Hi Sam. This product doesnt contain Testosterone Boosters. Your's in Health, Josh
  • "Is there pig fat in optimum nutrition serious mass"
    Hi Aijaz, I'm afriad I do not know the answer to the question. You would need to contact Optimum Nutrition Directly. Yours in Health, Josh
  • "To gain weight and muscle mass, Can I take ON Serious Mass and ON Platinum Whey or Gold standard. I was thinking it would be good to take serious mass first thing in the morning along with breakfast, then later on after i workout i'll take the whey protein and right before i go to bed i'll take a half serving of serious mass. what do you think?"
    Dear Marc, This supplementation stack sounds good to me for gaining mass. I would however leave the half serving of serious mass before bed as it will not be needed. Kind Regards Dave
  • "Hi I want to build muscle and gain size but I have a bit of belly fat!could I take this product along with a fat burner and lose my fat and gain muscle?!"
    Dear Cian, I wouldnt advise using this if you have fat you want to get rid off. I would use synergy/pharma whey with a fat burner and then once fat is off you can use a weight gainer. Dave
  • "I am a beginner,Do I take serious mass before workout,during workout or after workout?and how many times a day should I take serious mass?"
    Hi Arbino Serious mass is a mega calorie supplement it is primarily used to increase your calories per day, i would suggest using serious mass in between meals, thanks Yours in health Mo Giaffar
  • "Respected sir i am 20 years old and have 177 cm height but only have weight of 54 kg and hence i am under weight. sir i want to increase my weight minimum up to 15 kg. can this serious mass work for me. if it works for me than how many servings should i have to take per day. will i have to take any special diet while i taking serious mass or to continue our ordinary routine diet. THANKS"
    Hi Ammar Serious mass is great if you are looking to put on size but it isnt magic, basically you would need to eat every 2-3 hours 30g protein and a lot of carbohydrates. the serious mass is a meal replacement for when you cant eat a meal as it has about 1000 calories per serving, so as long as your diet and training are spot on you could quite easily put on 15kg. anymore problems dont hesitate to email on mo.giaffar@monstersupplements.com thanks. Yours in health Mohammed Giaffar
  • "Hey Dear i have some several questions 1) how should i take it ? ( can i take them twice per day ? 2) should i take them in non workout days ? 3)how many spoons in 24 oz of water ? And thank you thaat much "
    Hi Rami, Add two scoops of Serious Mass to a blend with 650-750ml of cold water or milk. New users may find it beneficial to begin with one half serving daily for the first week, gradually increasing to one or more full servings several times a day. It would be one scoop to 24 oz of water. Regards Liam
  • "Does the scoop come in the bag?"
    Hello Josh, Yes this product will come with a scoop inside the bag. Best regards
  • "Well, I live in washingtono seattle and i wondering am i still able to buy it from your website if not can you give me another place where i can purchase it from?"
    Hello Joshua. Unfortunately our courier service won't be able to deliever to your location. Best regards, Jack.
  • "Hi I am about to purchase two 12lb bags of serious mass to try and add mass or at least help maintain size during the end of this rugby season. I am 5 foot 7 and 175 pounds. I struggle to get above this weight even though i consume 1.5grams of protein per pound of body weight and same for carbs. I've even tried PVL mutant mass with no effect other than a few pounds around the stomach. Can someone advise where i am possibly going wrong and if serious mass will help considering Mutant mass did nothing. I lifts weights 4 times a week, rugby trainin twice a week with a saturday match. I do 1-2 30 min cardio circuits after weights session per week too. I do eat the right food every 2-3 hours and rarely miss a meal. Always have a protein shake or lean meat snack before bed. Any advice would be great thanks"
    Dear Richard, The answer is simple, your still not eating enough! You are using a lot of energy for expenditure every day, so you need to up your kcals until your putting on weight. Either that or do less cardio. Serious mass is a good weight gainer and should aid in your goals when taken twice daily. Dave
  • "When will chocolate be back in stock as I've rang asking a few times since last week with no one able to answer with any certainty"
    Hi Richard Many thanks for your enquiry. The Serious mass chocolate will be available on a special with FREE Optimum nutrition Fitness Fibre later this week. Kind Regards katie
  • "Im keen to buy the chocolate but still not in stock. Ill need to purchase soon but would rather use Monster Supplements as most reliable and trusted site. Any word on when it will be in as per my last post"
    Hi Ricky Many thanks for your enquiry,. The Optimum Nutrition Serious mass is on offer with FREE Fitness Finre whilst stocks last on quick find 4714. Kind Regards Katie
  • "Hello.sir i am using supliment from about a month but have not got result , i am taking recomended dose [2 to 3 times a day] and take 3 meals regularly as normal. i am still 4 kg underweight . so what should i have to do now."
    Hi ahmad In all honesty i would suggest that you are not having enough meals throughout the day.Personally I would suggest aiming for 5 meals + 3 shakes a day, this should get your calories up enough to keep your body in a surplus. Moreover make sure you are eating enough meats and carbohydrates as well as good fats (olive oil,fish,nuts etc). Also bear in mind your training needs to be good aswell. thanks Yours in health Mohammed Giaffar
  • "What is the best time to having serious mass? Wake up in the morning? Before work out? After work out? Before sleep?"
    Hi Kelvin, I'd have it PostWorkout or Breakfast.
  • "Im looking to pack on hard muscle is this a good product? if not what would u suggest ?"
    Hi Adam, This is a brilliant product for those looking to pack on muscle mass. Great weight gainer. Thanks, Omar.
  • "Used Gold Standard Whey for as long as i can remember,would like to try a mass builder,what would you suggest,i'm 6'4 and 235lbs at the moment,i'm about 23% bodyfat and i'm 40 years old,so don't really want to add more fat,i can help it,struggle to eat enough of the right stuff to gain more mass. Damn you chocolate hobnobs. Cheers."
    Hi Bobby, If you like Optimum you could try Serious Mass. Or if you would like to try a different brand, you could go with PhD Pharma Gain or Gaspari Real Mass. Thanks, Omar.
  • "Im quite lean currently and thus want to put on a little bit of weight (say half a stone). I dont want to lose my definition thought, just merely to add a little density to my arms, shoulders, chest and legs so i look a little wider. Im kinda in a hurry, summers just round the corner! I go to the gym regularly so thats not a problem, but i was wondering if this product will simply give me fat in the wrong places instead of adding density to my overall frame?"
    Hi Chris, If you have a good diet and proper training regime, this product will help you get the extra calories and protein that you need to add muscle. Thanks, Omar.
  • "HI , i recently bought serious mass but in the first serving i did feel a strong stomach upset but i only took a half scoop shaked well with milk , so why is this happening and how can i avoid the stomach upset ??"
    Hi Mostafa I would suggest trying the product with water instead of milk, it is better for you and it might help with stomach upset. thanks.yours in health mo giaffar
  • "Hi...my wt is 60 kgs n i m 5.7'...after taking this product how many hrs a day should i wrk out so that i gain only muscules n not fat..n also should i concentrate more on wt training or cradio ( i m to gymming)"
    Hi Abhinav You should aim to train for about 1 hr aday but have your weekends for rest. i would suggest using this twice a day, however make sure that it is in conjunction with a good diet. personally i would suggest only weight training. thanks Yours in Health Mo giaffar
  • "Hi does Serious mass contain anything that would make you fail a drugs test? Also is this a good mass gainer and is their anything you would stack this with to gain mass? i am currently 65kg and train 4-5 times a week and looking to bulk up abit Many Thanks "
    Hi Charlie There is nothing in serious mass that would make you fail a drugs test. provided your diet is right this would help you gain mass quickly. I would suggest using it with a pure whey protein like phd pharma whey or reflex instant whey. thanks yours in health Mo giaffar
  • "Hi, Just wondering when Optimum Nutrition Serious mass will be back in stock. Could you tell me when it is coming back in stock? Looking forward to your quick response."
    hi harry. the serious mass in stock at the moment but with the free fitness fibre. its listed as a seperate product. Best regards -AC-
  • "Would 1 scoop (half a serving) after my workout help me increase muscle mass and not put on too much fat? Obviously going to get some fat but want as little as possible"
    Hi Tom, That is a good idea as the product is also going to last longer. Yours in health, Jack.
  • "Does Serious mass can help me to gain six pack faster?"
    Hi Andy, No it wouldn't, serious mass is a weight gainer which with a good diet and effective training will help you put on muscle mass. Kind Regards Liam
  • "Hi! I'm living in Istanbul,Turkey and I want to ask something about this product.Firstly Is there with a shaker or just serious mass and can you send its to Turkey.And Lastly do you know how much money to cargo :) thanks from now :D"
    Hi can, No it doesn't come with a shaker and yes we do ship to turkey but unfortunately it will cost £50. Kind regards Liam
  • "12 lbs = 16 servings 1serving /day = 16 days ? so a 12 lbs bag lasts only half a month or less ?"
    Hi Max, That is correct but two scoops = 1250 calories so you could just take one month to make it last a month and still get alot of calories added into your diet. Kind Regards Liam
  • "Do u deliver to uk?"
    Hi Joshua, We Are based in Hull in East Yorkshire so yes we do. Regards Liam
  • "Is there any side effects by consuming this cos my age is 25 182cm hight with weight of 52kg and i was takeing 4m last 2 day with out going gym i feel some light pain in my stomach plz repy"
    Hi Dinnu, It won't have any side effects as it is just a protein, but when taking it try taking half the recommended serving and then increasing it as the weeks pass in order to gain weight/muscle at a gradual speed. Regards Liam
  • "Did usage of ON serious mass causes kidney truoble ? "
    Hello Rahul, To my knowledge there has been no record of kidney trouble with this product however if you have any further questions please consult your G.P as he will be able to give you a medical opinion. Best regards Chris Brodie
  • "Serious mass gainer show result in how much days............i have taken 6lbs of it........."
    Dear Zeeshan, It is dependant on the individual. you should see some weight gain after about a month. Dave
  • "Hello, I am on pHD Pharma Whey HT+, I look at myself as a hard gainer, i am looking to bulk up as i find toning easy and would like to bulk then tone if you understand me, I would like to know if this would pack on muscle mass or just mass were i dont want it, as i want to bulk out but look tanked but not fat haha."
    Dear Pierce, It is impossible to say, fat will go on to the body were it wants too. There is no chosing which areas add mass and which dont. If you worried about fat gain go for something like Muscle Fuel Anabolic as this is an all in one weight gainer but with half the kcals. Dave
  • " i m age of 21yr and wt 50kg i want to know that serious mass good for me...? and price of it plz rply soon... thanx "
    Hi Rahul if you are wanting to gain weight then this product will be fine for you The price ,which is next to the product, in red letters is £39.99 Regards Rich
  • "Are there any side effects of using Serious mass ? "
    Hi there Vinod, No there are not any side effects when taken as instructed. Regards, Luke.
  • "Will this product be okay to take with Jack3d taking into account Jack3d's massive caffeine dosage etc.?"
    Jay C, Hi there, Serious mass does not have any caffeine so in regards to caffeine that should be fine. In terms of weight gainers, just make sure you consume them sensibly to avoid excessive fat gain. Regards, LT.
  • "Any side effects of serious mass?"
    Hi Arun, There aren't any side effects as this is just a protein shake which can easily be taken in through your diet by eating chicken etc. Kind Regards Liam
  • "Hi is it suitable for vegetarians? thx"
    Hi Tarek, Yes as far as I can see it is suitable for vegetarians. Regards, LT
  • "Hi, my name is moeed, but u can call me moe. I go 2 the gym 3 - 4 times a week. I'm 17 yrs old and My goal is to gain weight n build muscle. Ive got a fast metabolism and if i take this product, would i see changes within less than 6 months?"
    Hi Moe, Changes can be noticed very quickly, train hard and eat well and you will get on great. Ultimately the more effort you put in the more you will get from your efforts. Regards, Luke
  • "I really like the look of this product and want to order some,how many servings would I get out of doing just one scoop instead of two and how much fluid should I mix with it ? Would I still see nice results from just one scoop servings ?"
    Hi Jason, You will to try it for yourself for consistency, depends how much water used etc. If used with a proper diet then yes you would see results, just less calories from the product. Regards
  • "Hi, my question is pretty simple, the spoon included in the container, how much is in grams with the powder? is like the label says 150 gr?? at the top?"
    Hello Oliver, One sccop of Serioue Mass is approx 167g. Best regards Chris brodie
  • "How use serious mass for best result ?"
    Hello Sameer, Thank you for your question. For best results I would advise taking the supplement post-workout and also in-between your meals. Yours in health, Jack Gray.
  • "Hi. Im quite underweight for the sport I play and it is important that I bulk up weight and muscle to be able to compete better physically, however i'm afraid of loosing my sprint speed considerably. Which product is best for me? Thanks"
    Hi Conor. Well if you are more muscular this should help. Just look at sprinters! Go for something like PhD synergy - pre and post workout. Once you've used that, look into getting more if you wish. LT
  • "Hi. I want and need to gain weight and muscle but mainly weight however im afraid of loosing my sprint speed. Will this happen?"
    Hi Connor This will depend entirley on how much weight you put on and your type of training An increase in weight will contribute to slowing you down however providing you cant find a 'happy medium' in terms of gaining weight and keeping up your speed training there should be no problems and if anything it will help increase your speed due to improving muscle maturity and strength. Just ensure you keep alot of fast explosive power lifting incorperated with your training Kind Regards, Josh
  • "I have a qustion regrading this product, it says 16 servings and is reccomd to take 3 times aday, does this mean if you take 3 serving aday the product will last for 5-6 days? or does it mean it will last for 16 days while taking 3 servings aday?"
    Hi Joe. It's 16 serving all together. I would use just one serving a day, 3 is way too many! Regards
  • "Hellow iam 23years 71kg i want to gain weight and i want to know how to use by my weight with how much 0z water please thanks "
    Hello Waleed, This is a very high calorie weight gainer and with the right training and diet is going to help you add some good mass. I would start with 2 servings a day and progress from there to no more than 4 depending on the effects and desired results. Have one shake post workout and the others between meals. However with regards to water levels used, just mix with the amount needed at achieve the consistancy you enjoy. Best regards Chris Brodie
  • "A long question but need an expert opinion. Im 19, about 5ft11 and weight around 10-10.5 stone and am looking to get to 12-13 stone with an athlete like physique. I want to put on mass quickly but dont want to get fat and want to have a more toned stomach/six pack. Is this the right supplement? ive tried reflex instant whey and obviously doesnt give the more mass i want. "
    Hi Josh. To add 2 stone of muscle you need to do a lot more than change one supplement. It's not really possible to answer your question as it's very vague, there' a lot more to it than that! Serious mass will help you add more size if used correctly. Regards
  • "Reply to your answer from my previous question. I will be eating more aswell as i know that food is more important but am just looking for something to help give me some extra calories. I am thinking about using it for a month then going on to a protein shake as I dont want to add to much fat for now just a bit more size, as its summer so will go all out to get the weight i want come winter. So you would recommend this for me? thanks for your help. "
    Hi Josh. Yes it sounds like a good bet! Regards
  • "Is it suitable for vegetarians .? "
    Hi Boby. I don't believe so, I can't find anywhere that it is at least. Regards Luke
  • "I have a six pack and have quite a slim build. If i take this Serious Mass product, will i loose my 6 pack completely? and if so is there another product that can help me put on serious weight and get bigger arms for example, and not loose my 6 pack?"
    Hi Daniel. It's calories in vs calories out. So the serious mass won't "make you fat" unless you have a calorie surplus, it will be easier to get a surplus with this ofcourse. In regards to bigger arms, there is no product that gives you bigger arms, you need to stimulate them for growth and have good eating habbits to ensure they can grow. A good protein supplement is ideal as it will provide you with a quality and convenient protein source, ON Gold standard whey is an example of a aquality protein. Regards Luke
  • "I just want to get bigger, but not loose my 6 pack, is this possible with Serious Mass? Or will i loose my 6 pack?"
    Hi Daniel It's calories vs calories out. No product can add fat or lose fat on it's own. Regards
  • "I go the gym 4 times a week and do quite alot in there everytime. With a good diet and the 2 shakes every gym day(one in the morning and one in the evening) Will I notice difference after a month? "
    Hi Daniel. It's a tough question to ask really, if you do everything right you will of course see gains. It just depends how much effort you put in which will determine your results. You need to get in the game and see what happens first! Regards
  • "Ok so in reply to your answer before what would you say is an excessive amount of calories if i dont want to loose my 6 pack while taking serious mass?"
    Hi Daniel. For the sake of a number - a few hundred calories over your maintenance which you need to know first. Regards LT
  • "Can I use ON serious mass along with ON gold standard whey?If yes then in what amount and when??"
    Hi Sahasranshu. Yes you can, there is no set time to use them. Depends on a whole bunch of factors! You could do: Serious mass post workout and the whey a few times a day as the protein source for meals. Regards LT
  • "Hi i just got this serious mass and ive been taking it 2 times a day one in the morning and 1 before an hour before i got to bed and i am wondering if i am taking it right on the packet it says 3-5 a week and also it say take daily what do i do and also i dont gain weigh easy ether. thank you "
    Hi Alex. Personally I would just take it post workout. Regards Luke
  • "Which is a better all-in-one gainer. This or reflexes one stop extreme thanks "
    Hi Jimmy, this product isn't an all in one so the reflex would be a more suited product thank you Liam (Team Monster)
  • "Im 6ft 2 and weigh 72.2kg I want to put on mass muscle would you recommend this product for me? I already use 100% whey optimum standard protein and would class myself as skinny toned. thanks "
    Hi Marc Yes this would be fine to take but please remember, these are only 'supplements' your overall diet must be high calorie also to help raise your calorific intake to help you gain weight Regards, Josh
  • "Hi, when do i use the protein shake on the box it says post workout before bed and in between meals but when i phoned optimum nutrition they told me to use it after my workout and in between meals im really confused can you let me know thanks "
    Hi Haseeb, One serving post work out is fine! Othwise you'd be havin 3000 plus cals from this product alone. Monster
  • "What is the best tasting flavour? Strawberry of cophocolate"
    Hello Jordan, Flavours are quite a personal thing to be honest. The Chocolate is good though i must admit. Yours in health, Mark Harrison Monster
  • "When will there be more of this product in stock?"
    Hi, We have strawberry: http://monstersupplements.com/store/p/4714/1/#.Ue0EgVdmNW8 Awaiting for more flavours to come in soon. Monster
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