Calcium supplement for osteoporosis can choose calcium carbonate, calcium citrate, calcium gluconate, etc. Calcium carbonate has the highest calcium content but is easy to cause constipation, and calcium citrate has little gastrointestinal stimulation but low calcium content, and calcium supplements can be chosen according to different individual differences. 1. Osteoporosis is a metabolic bone disease, mainly due to the loss and reduction of bone mass, destruction of bone tissue microstructure, brittleness increase, resulting in patients prone to fracture of the systemic metabolic diseases. 2. Osteoporosis should be supplemented with adequate amount of calcium to slow down bone loss and improve bone health. Calcium carbonate has high calcium content and is easy to be absorbed, but it is easy to cause constipation, while calcium citrate has low calcium content but is less irritating to the gastrointestinal tract, so according to different individual conditions, choose the appropriate calcium supplements for supplementation. 3. Calcium supplements should be taken in moderation, and should also be taken together with vitamin D, which can increase intestinal calcium absorption and enhance bone health. Serious cases of osteoporosis should go to the hospital in time to avoid delays. Osteoporosis is recommended to go to a specialized clinical department for advice on calcium supplementation and treatment.