Osteoporosis is a common disease plaguing the elderly, and major media are competing to publish a variety of calcium supplement and analgesic drug advertisements, but the general public feel dazzled and do not know what to do. In fact, bone mass peaks when a person is in his or her twenties or thirties and gradually declines thereafter, so it is better to take calcium supplements sooner rather than later. The way to supplement calcium is also diet calcium, medication calcium and so on. 1. Dietary calcium supplementation. Food with high calcium content are milk, shrimp, black fungus, black sesame and so on (generally darker in color contains a little more calcium), diet with the acidic food as much as possible, which helps the dissolution of calcium absorption, while alkaline food (such as soda, etc.) is easy to lead to the deposition of calcium, not easy to absorb. 2, drug calcium supplementation. First of all, pay attention to the calcium content of calcium tablets, normal adults need a daily intake of calcium 800-1000mg, excluding calcium in the diet, the general daily calcium supplementation mostly choose 600mg is appropriate, so pay attention to the calcium content when choosing calcium tablets, secondly, you need to pay attention to most calcium tablets can only send calcium into the gastrointestinal tract, absorption difficulties, easy to cause constipation, treatment of osteoporosis also need active vitamin D3 (need frequent The treatment of osteoporosis also requires active vitamin D3 (which requires frequent sun exposure, production in the kidneys, or drug supplementation) to promote calcium absorption, leading to an increase in blood calcium, and drugs such as calcitonin or diphosphonates to promote the deposition of calcium in the bone, completing the ultimate goal of calcium supplementation. There are many other medications that can be used in combination, some are bone preparations, containing organic substances needed for bone formation, etc., and some are proprietary Chinese medicines, as well as sex hormones or analogs that promote bone metabolism and assist in completing calcium supplementation.