#598 - Breast Cancer, rBGH and Milk

A study of U.S. women published May 9 in the LANCET links insulin-like growth factor-1 (IGF-1) with breast cancer.[1,2] Earlier this year a study linked IGF-1 to prostate cancer.[3] (See REHW #593.) Prostate and breast cancers are major killers of men and women in the U.S. and in other industrialized countries. IGF-1 levels are now being artificially increased in much of the cows' milk being sold throughout the U.S. These new cancer studies raise serious questions about the wisdom of allowing IGF-1 levels to be raised in milk.