Elderly people in nursing homes living in northern latitudes should supplement at the high range. Low toxicity concerns. It may be more cost-effective to take vitamin E separately. 65 mcg Used in blood clotting and calcium-binding. Found in green, leafy vegetables.
Gastrointestinal illness can impair absorption.
Few toxicity concerns. People suffering from kidney disease should check first with their medical practitioner. Water-soluble vitamin with few toxicity concerns. 1.3 mg Necessary for metabolism of amino acids and fatty acids, and the formation of red blood cells and antibodies. Water-soluble vitamin with few toxicity concerns.