About this ingredient
L-Lysine is an essential amino acid required for normal protein synthesis and tissue maintenance. It is naturally present in foods such as meat, poultry, fish, eggs, dairy products, legumes and soy.
Lysine is also involved in the formation of collagen-related proteins, carnitine production and other metabolic pathways. Because lysine is an essential amino acid, it is commonly included in essential-amino-acid supplements, nutritional formulas, sports-nutrition products and amino-acid blends.