For those who are on the fence about whether or not to take biphosphonates or Prolia for osteoporosis, look into Lara Pizzorno’s book “Your Bones”. She explains how osteoclasts and osteoblasts work on bone rebuilding and how those medications negatively affect the process in the long term. She recommends natural supplements of AlgaeCal, Strontium and perhaps some others to safely rebuild strong bone. Support is also available through The AlgaeCal Community on Facebook. Lara will often answer specific questions there. Here’s a link to her personal story: https://www.algaecal.com/expert-insights/lara-pizzorno-shares-her-personal-story/ I took Actonel for 4 years and Boniva for another 4 years. My bone scans showed some improvement while on the drugs but a decrease in bone density after discontinuing after the recommended length of time. You can’t stay on these drugs indefinitely. I’ve been taking AlgaeCal and Strontium for over a year with no problem. I expect my next Dexa scan to show improvement.