Tea also appears to be protective in moderate amounts, helping to prevent the cognitive impairment that goes along with aging. But too much of tea's polyphenols, at higher concentrations (like what you might find in supplements), appear to have a damaging effect on the body.
Researchers in Norway and the United Kingdom worked together to design a study of the effects of regular consumption of flavonoid-rich foods on the brain's function, as measured in several standard tests.
Over 2000 elderly men and women, all born between 1925 and 1927, were recruited from an ongoing study in Norway to participate. They answered a detailed questionnaire regarding their food intake over the year prior to the study. This included specific questions regarding chocolate, wine and tea intake. They were then were subjected to a battery of tests on their brains' function using standardized oral and written tests.
The researchers found that in general, those who consumed all three of the flavonoid-rich foods (chocolate, tea, wine), were 64% less likely to perform poorly on the cognitive tests than those who said that they didn't have any of the three over the past year. The more of the three foods they consumed, the better they did on the tests.
While you shouldn't take this as a green light to eat all the chocolate you want and drink as much wine as you want, it does mean that moderate intake of both of these, as well as drinking tea (black or green tea as opposed to herbal teas) may well help protect your brain from some of the effects of normal aging.
Eat well, eat healthy, enjoy life!
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