Amino Acids
Amino acid supplements are dietary products that contain one or more amino acids, the building blocks of protein. They may include essential amino acids (EAAs), branched-chain amino acids (BCAAs), or individual amino acids such as L-glutamine or L-arginine. Amino acid supplements are commonly used by people looking to support general nutrition, active lifestyles, and protein intake.
There are three main types of amino acid supplements: essential amino acids (EAAs), branched-chain amino acids (BCAAs), and single amino acid formulas. Essential amino acids cannot be produced by the body and must come from diet or supplementation. BCAAs (leucine, isoleucine, and valine) are popular in sports nutrition. Single amino acid supplements contain one specific amino acid for targeted dietary use.
Many people can obtain adequate amino acids from a balanced diet that includes high-protein foods such as meat, fish, dairy, legumes, and plant-based protein sources. Amino acid supplements may be considered when dietary intake is insufficient or during periods of increased nutritional demand. A qualified health professional can help determine individual protein and amino acid needs.