The elderly population with age, due to calcium loss and supplementation, incomplete absorption, can often cause calcium deficiency, muscle twitching, limb numbness and other symptoms, and even cause osteoporosis. Calcium supplementation for the elderly, mainly including diet, calcium supplements, etc.: 1, diet: more food with high calcium content, such as milk, cheese and other dairy products, shrimp, kelp, nori, oysters and other seafood, hazelnuts, almonds, walnuts and other nuts, tofu, soybeans, bean curd and other soy products, as well as peanuts, sesame paste, collard greens, cauliflower, cabbage, rape and other foods, appropriate consumption are beneficial to the elderly Calcium supplementation. Vitamin D can promote calcium absorption and is indispensable for calcium supplementation. 2. Calcium supplements: should be selected under the guidance of a professional physician or pharmacist, and should not be taken blindly, commonly used calcium supplements include calcium lactate, calcium gluconate, calcium citrate, calcium citrate, calcium acetate, etc., and should also be taken with vitamin D to promote absorption. In addition, the elderly also need more sunshine. In addition, the elderly also need more sunshine, appropriate exercise, promote blood circulation and body metabolism, regular rest and keep a relaxed mood, for the health of certain benefits.