Pyridoxine 5-phosphate

Pyridoxine 5-phosphate (PNP) is the phosphorylated form of pyridoxine, or vitamin B6. In the body, it acts as an intermediate in the conversion of pyridoxine to the active form of vitamin B6, pyridoxal 5-phosphate. The PNP form of vitamin B6 can be found in plant-derived foods. No adverse effects have been associated with high intake of vitamin B6 from food sources 1.


  1. Institute of Medicine. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, D.C.: National Academy Press, 2000.