B vitamins are essential for growth, development, and a variety of other bodily functions. (foodpyramid.com)
While a properly working metabolism is important for preventing unwanted weight gain, boosting your metabolism is also critical for many other bodily functions related to maintaining general health. (parsleyhealth.com)
Some trainers are still worried that creatine makes cells absorb so much water that there is not enough fluid available for other bodily functions, such as sweating. (ergo-log.com)