It is only within the last fifty years that man has started to learn about vitamins. They are essential to life and well-being. Moreover, we cannot manufacture most vitamins in our bodies. Fortunately, vitamins are vitamins, whatever their source-natural or synthetic.

Lack of vitamins causes deficiency diseases. Each of the better-known vitamins is related to an equally well-known disease. The remarkable thing about these diseases is that the cure is usually simple and immediately effective. Start eating foods that have the proper amount of the vitamin you need and it won’t be long before you are well. A word of warning here _vitamin deficiency diseases can be cured by certain foods. Other diseases cannot be cured by certain foods.

About a dozen or so major vitamins have been identified. They are available from foods in your neighborhood grocery store.

Vitamin pills and supplements are not necessary additions to a varied, balanced diet. If you want extra insurance, check with your doctor and take a vitamin pill containing United States Recommended Daily Allowances (U.S. RDA) and no more than those recommended amounts. Taking massive doses of vitamins or megavitamins is unwise and dangerous. Few people realize that excesses of some vitamins can be poisonous and even fatal. Vitamin overdose is almost always due to abuse of vitamin supplements. Therapeutic vitamin intake must be supervised by a physician.

Vitamin C (Ascorbic Acid)
Vitamin C (ascorbic acid) is a water-soluble vitamin. It helps form and maintain the material that holds living cells together and strengthens the walls of blood vessels. It also helps normal tooth and bone formation and builds resistance to bacterial infection. Natural vitamin C and commercially produced ascorbic acid are chemically the same substance.

Natural sources of vitamin C (citrus fruits, tomatoes, white potatoes, sweet potatoes, and green leafy vegetables) add other nutrients besides C and provide bulk, necessary for good digestion.

How much vitamin C is needed each day? One-half grapefruit (or six ounces of orange juice) plus a serving of a vegetable high in C will meet the daily requirement. As the body does not store this vitamin, moderate amounts of C-rich foods must be eaten daily.

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