The name vitamin was originally vitamine because the first one that was found was an amine, hence the name vital amine or vitamine. Subsequent studies of other such substance showed taht they were not all amine. So, the "e" was dropped. Vitamins are organic compounds that can not be synthesized by an organsim but are very essential for the maintenance of normal metabolism and therfore must be included in the diet. The absence or deficiency of vitamins in diet results in various diseases. Carbohydrates, fats and proteins are the three major classes of foods. To remin healthy we must take in relatively large amount of these substances. They are not however , the only nutrients we require. Some of our needs are satisfied only by vitamins and minerals. Type of vitamins Vitamin A : Vitamin A may be obtained from green vegetables and fruits , fish liver oil, eggs, butter, cheese etc. Vitamin A is not found in plants as such. It is ...
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