Also, estrogen without progesterone is much more likely to cause weight gain and insulin resistance. Progesterone balances the effects of estrogen. Keep in mind that provera is a progestin, not progesterone. Provera will just cause weight gain and has none of the benefits of progesterone.

That is what people used to believe, check this link to see what this researcher has to say

jgdo2001 (imported) wrote: Wed Aug 20, 2014 6:55 am : http://www.nbcnews.com/video/nightly-ne ... 9#53001889

An exacting and delicate hormonal balance seems to be the key for a good weight maintenance. And obviously the balance between intake and out take calories