Since 1947 Branched Chain Amino Acids Non-GMO Wheat & Dairy Free Suitable for Vegans Certified Gluten-Free Kosher Parve Dietary Supplement Branched Chain Amino Acids help support muscle nitrogen and a free amino acid pool during exercise. They can be used for energy by muscle tissue and comprise a large percentage of its amino acid composition. This formulation provides Free Form Branched Chain Amino Acids to promote optimal absorption and assimilation along with Vitamin B6 an important factor in amino acid metabolism.