When research study after research study refers to BCAA supplements and cites leucine as the most anabolic amino acid available, you better pay attention. Add l-isoleucine and l-valine to the mix, and it becomes one powerful muscle-building cocktail.
What BCAA Does
- BCCA products are the only amino acids that can be used by the muscles for energy. So instead of your body breaking down muscle during extreme catabolic conditions, BCAAs will be used instead.
- BCAA products, specifically l-leucine, stimulate muscle protein synthesis via multiple pathways, including the very important mTOR pathway. Even alone, l-leucine has been shown to stimulate muscle protein synthesis, as well as insulin secretion.