Vitamin B6 (Pyridoxine)
Vitamin B6 is a collective term for three different
water-soluable chemicals: pyridoxine, pyridoxal phosphate, and pyridoxamine.
All of which are converted to the same thing by the body. Vitamin B6
is required by the body for the metabolism of protein and amino acids,
and it aids in the release of glycogen from the liver whenever the muscles
need energy. It is also necessary for the synthesis of non-essential
amino acids, muscle protein, haemoglobin, insulin, and antibodies to
fight infection.
Vitamin B6 deficiency has not been
reported in healthy adults on a varied diet. However, megadose supplements
(250mg a day or more), taken on a regular basis may cause adverse side
effects. Symptoms of toxicity include nerve ending problems in the fingers
and toes, and trouble walking.
Vitamin B6 is found in a wide variety of foods. Good sources include
brans, cereals, liver, beef, chicken, nuts, seeds, vegemite, and bananas.
As with all other water-soluable vitamins, use as little cooking water
as possible, don't overcook food, and consume as much of the cooking
water as possible.