Protein - a common bodybuilding supplement.
Building muscle takes a lot of work, but it can take even more work if you are not prepared. If you don’t know what will work best for building muscle, you are creating more unnecessary work for yourself.
Make sure you are getting enough protein. The ideal diet for muscle building contains one gram of protein for every pound of your body weight every day.
For most people, this can be achieved through diet alone, and protein supplementation is not usually necessary.