For optimised health and body recomposition it pays to keep the body healthy. This means removing and neutralising toxins within the blood stream to ensure that the body can be more efficient. With that said, it can really pay to get your water from a bottled source over tap. It also helps to eat a diet with plenty of greens rich in I-3-C to help combat estrogens - think broccoli, kale and the likes of.
The phrase ''detox'' isn't one I am fond of, instead I like to describe this as a lifestyle choice to maintain a healthier body. After all, it is the only place you have to live in!