What Is The Difference Between Essential and Non-Essential Amino Acids?
Essential amino acids cannot be made by the body. You must get them from complete protein foods or combinations of incomplete vegetable foods. There are 9 essential amino acids: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, tryptophan, and valine. Your body can make non-essential amino acids by itself from vitamins and other amino acids. The term “non-essential” can be misleading since all amino acids are essential for proper metabolism and certain non-essential amino acids, such as glutamine, become very essential. The 13 non-essential amino acids are alanine, arginine, aspartic acid, cysteine, cystine, glutamic acid, glutamine, glycine, hydroxyproline, proline, serine, & tyrosine. The essential branched chain amino acids (BCAA’s) are of special importance for athletes because they are metabolized in the muscle, rather than in the liver.
