L-Leucine
An essential amino acid and one of the “branched chain amino acids” (BCAAs). In addition to being a component of body proteins, leucine serves an important function as an initiator of muscle protein synthesis. Leucine and the other BCAAs (valine and isoleucine) are often taken in supplemental form by bodybuilders, to offset catabolism during workouts and promote post-workout recovery.
See the BCAA review for more information.
