MEGA BCAA 1400 High dose of BCAA amino acids Branched Chain Amino Acids (BCAAs) are an important group of essential amino acids, consisting of Leucine, Isoleucine, and Valine. BCAAs are among the nine essential amino acids for humans, as our bodies cannot produce them. Their only source is our daily diet or dietary supplements. These amino acids account for 35% of the essential amino acids in muscle proteins. Vitamins B5, B6 and B12 are also included in the formula. Vitamins contribute to normal energy-yielding metabolism. To reduce fatigue and exhaustion. Vitamin B5 (pantothenic acid) is linked to the normal synthesis and metabolism of steroid hormones, vitamin D, and some neurotransmitters. Vitamin B6 plays a role in normal protein and glycogen metabolism. Together with vitamin B12, it supports the normal function of the immune system.