Vitamin B-6

Short Description
Vitamin B-6 is required for energy and amino acid metabolism, … Dietary vitamin B-6 activity can be provided by any one of several closely related …

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Content
Vitamin B-6
Background Information
Vitamin B-6 is required for energy and amino acid metabolism, and several other essential functions. The dietary requirement for this vitamin increases with higher amounts of dietary protein, which presents greater amounts of amino acids that need to be metabolized.
Dietary vitamin B-6 activity can be provided by any one of several closely related substances: pyridoxol, pyridoxal, pyridoxamine and their phosphorylated forms. As nutrient additives in conventional foods or dietary supplements, pyridoxol is often salted with hydrochloric acid to form pyridoxine (vitamin B-6) hydrochloride.
Effects on Health
The Dietary Reference Intake for vitamin B6 is 1.3 mg/d. Higher doses of vitamin B-6 have been used for several purposes, including premenstrual syndrome (PMS), diabetic neuropathy, carpal tunnel syndrome, and as an ergogenic aid. The effectiveness varies across these uses, and may also depend on biological individuality. Most of the evidence for effectiveness for premenstrual tension is anecdotal. The evidence for effectiveness in diabetic neuropathy, carpal tunnel syndrome, and ergogenesis is inconsistent and unclear.
Recent evidence suggests that vitamin B-6 intakes of at least several times the RDA may reduce the risk of heart disease and help folic acid…

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