Word: mg
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Dates: during 1990-1999
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...Women, be sure to get plenty of the B vitamins folate and B6. Daily intake of 550 mcg of folate plus 3 mg of B6--both higher than the RDA--may cut the risk of heart disease in half. Green leafy veggies and eggs contain folate; for B6, try bananas or beef...
Even Brody takes 400 units of vitamin E and 200 mg of C every day, however, just to be safe. She's not saying that supplements are bad, or that there's any danger in giving kids their Flintstone vitamins. Her concern is that too many people are taking huge doses without much evidence that they will do any good and without considering the harm they might cause. "If you have reason to believe that you are shortchanged on a single nutrient, you have to know what the risks are," she says. "That may require a consultation with a professional...
Power Play: MG...
...extract has been the subject of hundreds of scientific studies, some even bigger than the one reported in JAMA. These studies show that among other things, EGb 761 helps keep platelets in the blood from clumping together. That's why ginkgo extract is prescribed in low doses (40 mg a day) in Europe for patients with circulatory problems. Much higher doses (240 mg a day) are used to treat dementia...
What makes the JAMA study particularly noteworthy is its rigorous design. The researchers started with 309 test subjects who either had Alzheimer's disease or had suffered a stroke. These were randomly divided into two groups. One was given 120 mg of ginkgo extract, the other a placebo. Neither the doctors nor their patients knew who had been given what until the end of the study. Meanwhile, researchers measured mental deterioration using three standardized tests. The improvements were modest--a few points, say, on a 70-point scale--and showed up in only two of the three tests, but because...