ABC 33/40 - Birmingham News, Weather, SportsCaffeine linked to estrogen levels in women?

Caffeine linked to estrogen levels in women?

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Caffeine could lead to changes in women's estrogen levels.  That's the finding of a study in the American Journal of Clinical Nutrition.

What this means for women's health, researchers don't know yet.  The study found that caffeine affects white and Asian women in different ways.  Drinking about two cups of coffee a day increased estrogen levels in Asian women.  The same amount of caffeine actually lowered estrogen levels for white women.  The effects on black women were inconclusive.

Researchers stress that caffeine doesn't seem to cause problems in the short term, or affect monthly ovulation.   But in the long term, caffeine can change estrogen levels, which in turn can play a part in endometriosis, osteoporosis, and endometrial, breast and ovarian cancers.

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