Vitamin B6, also known as pyridoxine, includes pyridoxine, pyridoxal and pyridoxamine. It exists in the form of phosphate in the body. It is a water-soluble vitamin. Vitamin B6 is a component of some coenzymes in the human body and participates in a variety of metabolic reactions.Product function mainly participates in nearly 100 enzyme reactions in the form of pyrrolaldehyde phosphate (PLP). Most of them are related to amino acid metabolism, including transamination, decarboxylation, side chain cleavage, dehydration and transvulcanization. These biochemical functions involve many aspects: participate in protein synthesis and catabolism, participate in all amino acid metabolism, such as heme metabolism, tryptophan synthesis of nicotinic acid; Participate in gluconeogenesis and UFA metabolism; It is related to the metabolism of glycogen, sphingomyelin and steroids; Involved in certain neurotransmitters (serotonin, taurine, dopamine, norepinephrine and γ- Aminobutyric acid) synthesis; Participate in the metabolism of one carbon unit, vitamin B12 and folate. If they have metabolic disorder, they can cause megaloblastic anemia; Participate in nucleic acid and DNA synthesis. Lack of DNA synthesis will damage DNA synthesis. This process is very important to maintain appropriate immune function.