@geranium1 So far I'm doing well with calcium hydroxyapatite. It's a combination of calcium and phosphorus. I'm currently taking the NOW brand. I can't remember now why I chose that combination, but I do remember reading about the advantages at the time. Both my blood and urine calcium levels have been within range. I'm only taking 1 capsule 2x a day as apparently my calcium intake from food is making up for the rest. I eat very little dairy, so this is encouraging!

@geranium1 Did you begin with the full dose ? I feared that problem as a CRC patient, so I started slowly, and in a month hope the full dose feels okay…also, they go better taken with food, and extra hydration helps.. some people especially sensitive to the magnesium in many of these combos— so they take separate supplement elements… sometimes reactions depend on what type of calcium or magnesium is used….good luck whatever you chose !

@geranium1 My functional medicine physician, N.A. menopause Society certified, told me yesterday her patients report that AOR Bone Basics is easier on their stomach than Now hydroxyapatite calcium as the AOR contains other ingredients that buffer the calcium. But I think everyone is different and reacts differently to different supplements and medications. There is no one size fits all.

@I have taken AlgaeCal Plus for years and have no problem with the Calcium. I still have to take the osteoporosis meds as the algaecal was not enough for me (even with the stontium) but I do not get sick from the calcium and other calciums did make me sick.