Hey

1. I've been working out for quite a few years now, without taking any supplements. I heard my friend saying that If I take 3 tablets or Centrum (morning, noon, evening) and workout, I will gain more muscle mass.
2. Experts , Please answer!
3. It won't have much of an impact on muscle mass unless you're seriously vitamin-deficient in your diet right now.

Tags: andy and female body building, natural body building, body building supplement