Yamamoto Nutrition BCAA 4:1:1 is a branched chain amino acid dietary supplement with vitamins B1 and B6. The product has been created using an innovative 4:1:1 ratio (4 parts of L-Leucine, L-Valine, and 1 1 of L-Isoleucine). Branched chain amino acids are recommended to supplement the diet of athletes who train daily. The formula is also enriched with vitamin B1, which supports normal energy metabolism, and vitamin B6, which contributes to the reduction of tiredness and fatigue, and to the maintenance of normal protein and glycogen metabolism. Branched-chain amino acids (BCAA) are an important group of essential amino acids consisting of Leucine, Isoleucine and Valine. BCAA are among the nine essential amino acids for humans, because our body is not able to produce them. The body’s only supply is through daily diet or supplementation. Branched chain amino acids (BCAA) account for 35% of the essential amino acids in muscle proteins. Leucine, Isoleucine and Valine are essential amino acids provided by different dietary proteins. BCAAs can be taken as supplements, particularly recommended before intense training or demanding physical work. BCAA 4:1:1 contains a 4:1:1 ratio of Leucine, Isoleucine and Valine.