@tmknight Same with me. Looking for alternatives, especially since I read a new study that clams taking calcium can be a problem. I know Algae Cal claims a different type of calcium, but apparently all form of calcium supplements were associated with higher risk of heart issues in older women who had been on supplements . I have been doing weight bearing exercises and have always been very active with hiking and gardening. Frankly I was surprised that my Dexa showed osteoporosis. I don't think my daily dose of Synthroid helps either.