@johnbishop I've been trying a few different products but right now I'm taking Solaray calcium citrate with vitamin D3. I try to use chelated calcium and have tried other algae sourced calcium but those are more expensive. My doctor advises any calcium citrate as best for absorption but of course he is an MD not a nutrition expert. It falls on us to do a lot of the research for what ultimately works best for our bone health. Glad to have this forum so we can learn from each other! I recently moved so my budget is much tighter than usual but when I find a better product I'll be sure to post it here. Best to you!