It is hard to get a handle on them. Some women have reported good results in symptoms, but even Dr Lee has yet to publish any studies supporting their use. Susan, it's difficult to stay on top of all the theories to disprove theories. In addition Provera blocks some of the lipid effects. Better to lower your cholesterol with diet and exercise.
Soy works well too.
In some women. I just read a provocative study which indicated that some women respond to HRT and others do not depending on the kind of abnormal cholesterol they have. It is probably genetic. One size does not fit all. In fact heart disease does not increase faster after menopause.