GLOSSARY

Pyridoxine is a B6 vitamer commonly used in supplements, converted in the body before many of its functions.

For numbness after prolonged use of several products, record this form and the total daily supplemental amount.

B6 includes pyridoxine, pyridoxal, pyridoxamine and their phosphorylated forms. PLP and PMP support amino-acid reactions and other pathways; PLP also participates in glycogen utilisation. These structures do not create separate dietary requirements. Active-form marketing without evidence and dose comparison does not establish universally superior absorption, safety or exercise performance.

Chronically excessive B6 can cause sensory neuropathy, tingling or balance problems despite water solubility. Upper limits differ between authorities and are not a universal personal rule. Add B6 from multivitamins, magnesium products and sports supplements. An active-form name does not automatically justify high intake or ignoring symptoms, and a product sold for recovery can still contribute substantial exposure.

Fish, poultry, potatoes and chickpeas supply B6, with varying bioavailability among food forms. Plasma PLP is a common marker, but inflammation and specimen conditions matter. Eating more protein alone does not justify unlimited B6 supplementation. Dietary adequacy and risk factors provide better grounds for assessment than the name of a bodybuilding programme or a generic product claim.