Vitamins are
organic substances that the body needs in minute amounts and that we
ingest with our foods. Vitamins do not supply energy, nor do they
contribute substantially to the mass of the body; rather, they act as
catalysts, substances that help to trigger other reactions in the body.
The two basic
categories of vitamins are water-soluble and fat-soluble. Water-soluble
vitamins are not stored in the body, and any excess amounts are flushed
out in the urine. Fat-soluble vitamins are dissolved and stored in the
fatty issues of the body. It is necessary to take in water-soluble
vitamins on a daily basis, but fat-soluble vitamins can be ingested less
often.
Water-Soluble
Vitamins |
Fat-Soluble Vitamins |
B1 (thiamin) |
Vitamin A |
B2 (riboflavin) |
Vitamin D |
B3 (niacin,
nicotinic acid, nicotinamide) |
Vitamin E |
B5 (pantothenic
acid) |
Vitamin K |
B6 (pyridoxine) |
|
B12 (cyanocobalamin) |
|
Biotin |
|
Folate (folic
acid, folacin) |
|
Vitamin C
(ascorbic acid) |
|
Vitamin A
(retinol) |
|
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