Pyridoxine, also known as vitamin B6, plays a role in the production of red blood cells. It may help increase the health of the cardiovascular system.

Toxicity

Can cause nerve damage in the arms and legs. This generally happens at doses above 100 mgs. The effects are reversible on stopping supplementation.

Deficiency

Deficiency in vitamin B6 is incredibly rare in the developed world. It's mostly only seen in those with a bad diet with improper amounts of nutrients.

Supplement

The recommended daily allowance for vitamin B6 is 1.3 mgs per day for adults, however, supplementation with this vitamin is not generally necessary for most Wester-style diets.