Studies at the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University in Boston "suggest that consuming fruits and vegetables may help slow the aging process in both body and brain. Science has long held that damage by oxygen free radicals is behind many of the maladies that come with aging, including cardiovascular disease and cancer. There's firm evidence that a high intake of fruits and vegetables reduces risk of cancer and that a low intake raises risk".
The scientific research has helped sales of antioxidant vitamins but these researchers point out that many large scale testing of supplements have failed to prove taking supplements holds the same benefits as eating the whole food. It may be the combinations of nutrients in food that is beneficial. For example, foods contain more than 4,000 components. These constitute a major class of dietary antioxidants and appear to be responsible for a large part of the protective power of fruits and vegetables. To read more about this research from The Agricultural Research Service go to http://www.ars.usda.gov/is/AR/archive/fe...
Antioxidants are protective substance found naturally in fruits, vegetables and grains. So please do not run out and buy supplements just do as Mom said and eat your fruits, vegetables and whole grains. A good way to get your antioxidants is from the rainbow of colors available. Yellow foods contain lutein, which protects eyesight and anthoxanthins that increases detoxification and are protective against certain kinds of cancer. Red foods contain lycopene believed to lower the risk of stomach, bladder and colon cancer. Green foods get their color from chlorophyll that has the ability to block the action of certain cancer-causing substances. Orange foods contain beta-carotene, a powerful antioxidant shown to prevent cancers of the stomach, breast, lung and cervix. Blue/purple foods have anthocyanin, beside protecting against cancer it also dilates blood vessels and reduces the risk of stroke and heart attack. This may be the same reason that red wine has been shown to reduce the risk of heart attack.
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