There was a meeting at the Mayo Clinic in 1976 called the Consensus Meeting. Experts from around the world gathered, and said women should not be given estrogen unless you give some progesterone along with it because they found that progesterone protects against those
cancers. The ovary makes both hormones. Mother nature did not decide that women should be on estrogen by itself month after month, year after year and yet that's what doctors were doing. They were putting women, post menopausal women on estrogen for their bones and they were creating cancer of the uterus and breast cancer. So when the Mayo Clinic said that progesterone should be given, it turns out here was no company selling natural progesterone, real honest-to-God human female progesterone. They were all making synthetic analogs that worked like progesterone in the sense that they could be used for birth control pills. So they jumped in and started advertising to the doctors, "oh, we have a good progesterone here, use ours" so Provera came in and Megastrol came in and all these synthetics came in. (As a result, doctors have come to believe that these counterfeit progesterones are real progesterone. See Provera is not Progesterone.)
The January 26, 2000 issue of JAMA (Journal of the American Medical Association) published the study "Menopausal Estrogen and Estrogen-Progestin Replacement Therapy and Breast Cancer Risk" which concluded that progestins increase the risk of breast cancer by 8% per year !!!! See Progestins Increase Breast Cancer Risk. This was the 3rd such study to prove that progestins cause cancer and should not be used in place of progesterone.
Much More on Progesterone
These pages are provided for information only. It is not intended to diagnose, treat, cure, or prevent any disease, sickness or condition. If you require medical assistance please see a nutritionally wise and progesterone friendly health practitioner.