What is L-Isoleucine Powder?Prescribed for Life L-Isoleucine Powder is gluten free, vegan and non GMO. Isoleucine is an essential amino acid. The human body needs amino acids for vital functions including building proteins, hormones, and neurotransmitters. Your body can make nonessential amino acids, but it cannot make essential amino acids. Isoleucine is one of three essential amino acids that falls into the branched chain category. This means it has a chain branching off from one side of its molecular structure.Gluten FreeVeganNon GMOWhat does Branched Chain Amino Acid Powder do? BCAA Powder is heavily concentrated in muscle tissue. Adding Isoleucine supplement to your daily routine can help fight muscle fatigue. Isoleucine also promotes energy. These two attributes can help boost athletic performance.Why Prescribed for Life?Whether you're an individual looking to supplement your home nutritional regimen, or a large-scale manufacturer, you can always call on us to find a solution. We carry over 750 products in sizes ranging from half an ounce to metric tons. Benefit from our decades of experience in the nutritional supplement industry. We bring a personal touch to business, and we are here to support you.