Why do you ask?: Body mass index ignores fitness lifestyle factors. The guys in the photo are "underweight" but in the peak of good health. If you want to gain muscle, it's about resistance training and perhaps creatine supplementation. If you're a man, you need no body fat; if you're a woman, just a little is fine.
Answered 3/16/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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