At 18 yo, you will: Probably continue to gain muscle mass over time. Protein shakes are fine but please beware of internet products or unusual things like steroids friends may suggest. Lean and mean can be great. Peace and good health.
Answered 4/4/2014
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4 doctors weighed in across 4 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
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