The best time of the day to take calcium tablets can be chosen in the early morning or at night before going to bed, or can be taken with meals or half an hour after meals. The law of human metabolism shows that the calcium content in the body is in a trough in the early morning and before going to bed, so you can choose to take calcium supplements at the above two times in order to achieve better calcium supplementation effect. At the same time, because between meals and meals will stimulate the stomach to secrete a lot of gastric acid, so at this time to take calcium can promote the absorption of calcium, but also to avoid the stimulation of the gastrointestinal tract. Patients are advised to eat more foods with high vitamin C content, such as fruits and vegetables, and to go outdoors to get more sunlight, which is beneficial to calcium absorption. However, it is important not to oversupply calcium, because repeated oversupplementation can lead to the accumulation of residual calcium to form kidney stones, gallstones, etc. In conclusion, it is recommended that patients take reasonable calcium supplements and correctly understand the effective ways of calcium supplementation so as to be efficient and strong.