Calcium supplementation for adults is generally supplemented for about 3-6 months as a course of treatment. Patients with slight calcium deficiency in daily life can drink more milk, eat more soy products, animal liver, fish and shrimp, bones and other calcium-rich foods, which can meet the body’s needs and strengthen calcium reserves; patients with more serious calcium deficiency can take calcium carbonate, calcium acetate and other calcium supplementation drugs directly, and use vitamin D in combination, and stop the drugs when the condition improves. The most abundant mineral in the human body is calcium, and calcium in bones and teeth accounts for 99% of the body’s calcium, which plays an important role in maintaining bone structure and function. Long-term calcium deficiency can lead to tooth loss, joint pain, osteoporosis, prone to fractures, rickets and other diseases, and requires active treatment. Calcium supplementation for adults is generally reviewed every month or so, while regular bone density monitoring, not long-term use of calcium tablets, which may cause calcium salt deposits leading to stones, constipation, induced stroke and many other symptoms. Calcium deficient people should actively engage in outdoor activities and get more sunlight to help promote calcium absorption.