Required for carbohydrate metabolism, adrenal function, enzyme reactions, and production of fats, cholesterol, bile acids, hormones, neurotransmitters, and red blood cells.

Deficiency is rare, except in malnutrition, and causes burning/tingling in hands and feet, fatigue, and headache.

Drugs that deplete vitamin B5: oral contraceptives, amitriptyline, imipramine, and desipramine.

Most people get adequate niacin from diet and/or a multivitamin.

Food Sources : Liver, kidney, egg yolk, brewer�s yeast, broccoli, chicken, beef, whole grains, legumes

Adequate Intake : (mg/day)*
Men = 5
Women = 5
Pregnancy = 6
Lactation = 7

Upper Limit : Not determined

Side Effects : No adverse effects known with food or supplements