Pyridoxine

Vitamin B6 refers to a group of three compounds: pyridoxol (pyridoxine), pyridoxal and pyridoxamine. Vitamin B6 in the form of PLP and, to a lesser degree, pyridoxamine phosphate plays an essential role in the interaction of amino acid, carbohydrate and fatty acid metabolism in the energy-producing TCA cycle. Animal and human studies suggest that a vitamin B6 deficiency affects both humoral and cell-mediated immune responses.