Breast Cancer

Weight Gain Linked To Breast Cancer

Published in Cancer Weekly, November 17th, 1997

A study of more than 95,000 nurses provides what may be the strongest evidence yet that women who put on a lot of weight during adulthood raise their risk of breast cancer substantially.

Researchers said the reason is that body fat increases the amount of estrogen in the bloodstream. And estrogen is thought to promote breast tumors.

The study was reported in the November 5, 1997 issue of The Journal of the American Medical Association.

Women who were not taking estrogen after menopause increased their risk of breast cancer with every pound (450 grams) they gained after age 18. Among these women, those who put on at least 45...

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Source: Cancer Weekly (1997-11-17)

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