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A member asked:

Optimum nutrition's serious mass, does it have any side effects ? i am planning to start it on gym days..is it advisable? want to gain mass.

A doctor has provided 1 answer

Seems okay: It appears to be a whey-protein supplement with creatine, and thus safe. I'm glad you're pursuing a fitness goal like this, and that you are doing this rather than using anabolic steroids. My friends who lift often use a protein powder and/or creatine with good results; everyone i know who's tried steroids has been sorry.

Answered 5/19/2021

5.2k views

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