Yes, synthetic progestins increase breast cancer, but there is no evidence that progesterone does the same. Quite the contrary. Below is my argument in favor of natural progesterone as a preventive for breast cancer, with reference to the Fournier studies that address this issue.
News reports on the mammography controversy reached a pitch of high hysteria last week, the baseline syncopated with the language of hate and fear. No question, “breast cancer” is a charged phrase. In an instant, the two words conflate the beginning of life, when a baby feeds at its mother’s breast, and the end that so many Americans fear, “the Big C.” Sex and death packed into one phrase—little wonder that the words can unleash such strong emotions.