calcium aspartate anhydraus vs calcium carbonate

I found nothing on JAMA, which to me is a red flag indicating that it has not undergone reliable studies. Also, this: https://www.drweil.com/vitamins-supplements-herbs/supplements-remedies/a-different-kind-of-calcium/. Look forward to any evidence anyone would like to provide. I am a calcium citrate fan, myself, together with daily greek yogurt, which combined have been keeping my blood levels normal.

(I've had bariatric surgery and significant weight loss, which reduced acid levels and pushed me into osteoporosis. My bones now read as borderline osteopenia/normal on a dexa scan, mostly due to calcium and regular prolia injections. The best answer, of course, is weight-bearing exercise, which I would do a lot more of if it weren't, you know, boring.)