Lysine is chemically known as 2,6-diaminohexanoic acid. Lysine is an alkaline essential amino acid. Since the content of lysine in cereals is very low, and it is easily destroyed and deficient during processing, it is called the first limiting amino acid.

Lysine is one of the essential amino acids for humans and mammals, which cannot be synthesized by the body itself and must be supplemented from food. Lysine is mainly found in animal foods and legumes, and its content in cereals is very low.

Lysine has positive nutritional significance in promoting human growth and development, enhancing immunity, anti-virus, promoting fat oxidation, relieving anxiety, etc. It also promotes the absorption of certain nutrients, and can work synergistically with some nutrients to better perform the physiological functions of various nutrients.