Progesterone vs. synthetic progestins and the risk of breast cancer: a systematic review and meta-analysis

This is a fantastic link that not only acknowledges there is a scientific difference between Synthetic Progestin & Natural Progesterone but also the breast cancer risk associated with synthetic progestin.     Progesterone vs. synthetic progestins and the risk of breast cancer: a systematic review and meta-analysis Abstract Background: Use of menopausal hormonal therapy (MHT)-containing estrogen…