How do Protein Powders work?
Protein powder works by providing your body with a supply of amino acids for cell growth throughout your body. When protein powder is digested it is broken down into amino acids which the body uses to made all the cells in your body. In particular this is important for muscle repair and growth. When taking protein powder after working out, your body receives a ready supply of these amino acids to help repair and grow new muscle tissue.
Read more about how your body uses protein to build lean muscle.