5:33 AM
Anonymous
When it comes to vitamins, it appears you could have too much of a good thing, say researchers who report a link between their use and higher death rates among older women.
Experts have suspected for some time that supplements may only be beneficial if a person is deficient in a nutrient.
And excess may even harm, as the study in Archives of Internal Medicine finds.
All of the women, in their 50s and 60s, were generally well nourished yet many had decided to take supplements.
Multivitamins, folic acid, vitamin B6, magnesium, zinc, copper and iron in particular appeared to increase mortality risk.
The researchers believe consumers are buying supplements with no evidence that they will provide any benefit.
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