Yamamoto Nutrition Bcaa PRO 4:1:1 Kyowa Quality. Bcaa PRO is a branched chain amino acid (KyowaQuality) dietary supplement with vitamins B1 and B6. BCAA are recommended to supplement the diet of athletes. 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. The brand Kyowa Quality (KQ) is made up of a wide range of ultra-pure amino acids and related compounds provided by Kyowa Hakko BIO Co. LTD., a global leader with over 60 years of experience and a reputation for strict quality assurance. With its innovative fermentation technology, developed over the years. Kyowa has become a trusted pioneer in the health field. QUALITY FIRST The KQ brand provides consistently pure products, building on 60 years of Kyowa experience. Quality assurance is the core of the KQ brand. 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 PRO contains an 4:1:1 ratio of Leucine, Isoleucine and Valine.