Vitamins are carbon-containing substances that are required for normal metabolism but are not synthesized by the body. Vitamins are available form the food we eat, and the water we drink, and are ingested orally or intravenously. Exceptions to this definition include Vitamin D, which is naturally synthesized by the body in limited quantities; and Vitamin B12, which is synthesized by bacterial flora in the intestinal tract.
Vitamins and minerals function as "cofactors" in the metabolism of products in the body. Most aspects of body metabolism proceed with the aid of specific enzymes, but if additional catalysts were not present (cofactor vitamins and minerals), the reactions would proceed slowly to a point of ineffectiveness.
Dietary supplements of vitamins are often recommended by physicians when any of the following conditions are present: vitamin deficiency, poor intestinal absorption, increased tissue requirements, stress, pregnancy, lactation, and menstruation. Some disorders including hyperthyroidism, infectious diseases accompanied by fever, and tissue-wasting disease also require an increase of tissue.
To buy Cellfood MultiVitamin. Click here.