Patients can take calcium supplements by consuming more calcium-rich foods in moderation, or through medication and sun exposure. 1. Calcium-rich foods: milk, sesame paste and other foods are rich in calcium, while milk is rich in casein, which has a certain role in assisting the absorption of calcium ions, and can be more effective in calcium supplementation. 2. Medication: Patients can take calcium tablets orally to replenish calcium. It should be noted that the lack of calcium in the patient’s body may be caused by the lack of vitamin D. The patient can consume vitamin D or a mixture of vitamin D and calcium ions every day to replenish the calcium in the body. 3. Sunbathing: Calcium deficiency in patients may be due to the lack of vitamin D. Sunbathing, the skin can synthesize active vitamin D, which may promote the body’s absorption of calcium. It is recommended that when patients find symptoms of calcium deficiency, they should consult a doctor in a timely manner, complete the relevant examinations and standardize the treatment under the guidance of the doctor.