Definitions for "Vitamins"
Foods containing vitamins A, D, E, K, and some of the B complex group are necessary in diets to maintain healthy skin and hair but, according to Dr. Leshin, "There is no evidence that vitamins or other additives are advantageous when applied to the skin." Glossary
Various organic substances that are, as far as is known, essential to the nutrition of many animals, acting usually in minute quantities to regulate various metabolic processes.
Vitamins are micronutrients that the body needs for good health. There are two groups of vitamins: fat-soluble (A, D, E, and K) and water-soluble (C, B group). Your body can store fat-soluble vitamins in fat tissues and liver and use them when needed. Water-soluble vitamins cannot be stored this way and need to be replaced often. Vitamins are indispensable for good health.
chemicals that help the body grow and stay healthy
Tiny facsimiles of cave people Mom forces you to swallow each morning as part of her sinister plot to have you grow up to be "Just like Daddy."
Though commonly synthetic or from a plant source, and halal, vitamins are haram when from an animal source.
Keywords:  niacin, zinc, support, men, natural
Vitamin B-6, Niacin, Natural Vitamin E and Zinc: Support sexual function in men.
Keywords:  cfs, try, evidence, patients, something
Something which almost all CFS patients try but there's not much consistent evidence for which ones work. (We each have our own collection).