Vitamin B6 (pyridoxine 5-phosphate) — answers to vitamin B6 (as pyridoxal 5'-phosphate)
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A water-soluble B vitamin involved in amino acid and neurotransmitter metabolism. This form supplies vitamin B6 as pyridoxal 5'-phosphate, the vitamin's active coenzyme form in the body.
Why it’s used
Taken to meet dietary vitamin B6 requirements, and sometimes for mood, PMS-related symptoms, or nerve support.
What the evidence is for
correcting vitamin B6 deficiency.
What the evidence says
NIH ODS confirms vitamin B6's essential role and that supplementation corrects deficiency. Evidence for benefits beyond correcting deficiency, such as for mood or premenstrual symptoms, is more limited and mixed. Very high, prolonged intakes have been associated with nerve-related symptoms in case reports.
Dose studied
1.3–100 mg — adult RDA up to the tolerable upper intake level, per NIH ODS.
Context
Deficiency-correction doses sit near the RDA; the tolerable upper intake level reflects concern about high-dose, long-term use rather than typical supplement dosing.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.