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  • Title: Vitamins in health and aging.
    Author: Thomas DR.
    Journal: Clin Geriatr Med; 2004 May; 20(2):259-74. PubMed ID: 15182881.
    Abstract:
    The use of various dietary supplements, including vitamins, to prevent or delay disease or aging rests for the most part on epidemiological associations. It does appear from these data that a diet rich in vitamins is associated with a tendency to improved health; however, the results from controlled trials are dismal. The discrepancy between different types of studies is probably explained by the fact that dietary composition and supplement use is a component in a cluster of healthy behaviors. An alternative hypothesis is that there are as-yet-unknown essential organic compounds in certain foods. The most prudent approach is to recommend a daily intake of fruits and vegetables as a likely source of essential nutrients. Failing compliance with a natural source of essential nutrients, and in populations at high risk of vitamin deficiency, vitamin supplements should be encouraged.
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