I think the FDA kills more people than the U.S. Army, though it might be a toss-up.
In a nutshell: Drug companies modify progesterone so that they can patent it. Synthetic progesterone kills and hurts many many women who are trying to prevent cancer. They then attempt to criminalize natural progesterone. You can still buy it, but there are severe restrictions on labeling and marketing — you can’t call it progesterone, even though that’s what it is.
National Institute of Health halted a study of synthetic progesterone because too many women were dying.