Multivitamins are a combination of many different vitamins that are normally found in foods and other natural sources. Multivitamins are used to provide vitamins that are not taken in through the diet. Multivitamins are also used to treat vitamin deficiencies (lack of vitamins) caused by illness, pregnancy, poor nutrition, digestive disorders, and many other conditions.

Pharmacology

Vitamin A plays an essential role in the function of retina and is essential for growh and differentiation of epithelial tissue.

Vitamin B: Plays a role in the synthesis and maintenance of coenzyme A. Necessary for lipid metabolism, carbohydrate metabolism, tissue respiration, glycogenolysis, inhibition of very low-density lipoprotein (VLDL) synthesis. May increaase chylomicron triglyceride removal from plasma.

Vitamin B12 (cyanocobalamin): Required for the maintenance of normal erthropoiesis, nucleprotein and myelin synthesis, cell reproduction and normal growth; intrinsic factor, a glycoprotein secreted by the gastric mucosa, is required for active absorption of Vitamin B12 from the Gl tract. Necessary for normal tissue respiration; plays a role in activation of pyridoxine and conversion of tryptophan to niacin.

Vitamin E is an antioxidant which preserves essential cellular constituents.

Vitamin C: Necessary for collagen formation and tissue repair; plays a role in oxidation/reduction reactions as well as other metabolic pathways including synthesis of catecholamines, carnitine, and steroids; also plays a role in conversion of folic acid to folinic acid.

Vitamin D3 is a fat-soluble sterol. It is necessary for the regulation and regulation of calcium and phosphate homoeostasis and bone mineralisation. Vitamin D is also essential for healthy bones as it aids in Calcium absorption from the Gl tract. In addition to this it stimulates bone formation. Clinical studies also show that Calcium and Vitamin D has synergistic effects on bone growth as well as in Osteoporosis and fracture prevention.