Tip - What Is Leucine Used For? | LIVESTRONG.COM

Leucine is a natural amino acid that is found in your body. Leucine and the branched amino acids, isoleucine and valine, make up almost one-third of your muscle protein. A report published in February 2006 in "The Journal of Nutrition" notes that during exercise, leucine breaks down faster than other amino acids. It also works to...