I was on HRT for eight years and still had osteopenia. I was much younger in my 50s. I am now 82 then they put me on vagifem and I ended up with a pre-cancerous condition of the uterus requiring hysterectomy. I then developed bilateral breast cancer. I’m using the two studies on strontium citrate as supplement guides- one done in Canada the other one done in United States. At one point, I had osteoporosis while being on long-term steroids, and reversed it to osteopenia; I’m on prednisone such a long time for an auto immune situation. My Endo wants to be on bone meds, even though I’m not technically osteoporosis now. I had stopped the strontium when I developed atrial fibrillation because I didn’t want to muddy the picture. I felt so ill after the second Prolia shot - got shingles 13 days after it- I resumed taking strontium citrate 340mg now, dietary calcium, vitamin D, 2000, magnesium citrate 200 mg a day. Even though I didn’t have the strength to exercise because of my condition, I still improved my bone density from osteoporosis to osteopenia.
(I am a retired, nurse anesthetist.)