Calcium carbonate D3 granules are commonly used as calcium supplements for women during pregnancy, lactation, menopause, children and the elderly to promote bone development and prevent osteoporosis. Calcium carbonate D3 granules can be taken after meals, early in the morning and late at night, and the specific time of administration should follow the doctor’s instructions in order to maximize the efficacy of the drug. First of all, patients can take calcium carbonate D3 granules between meals, mainly because food can promote the secretion of stomach acid, and the decomposition of calcium carbonate D3 granules need to consume part of the stomach acid, at this time to take calcium carbonate D3 granules to help digestion and absorption. In addition, human blood calcium levels are lowest late at night and early in the morning, so taking calcium carbonate D3 pellets before bedtime to supplement exogenous calcium is easy to absorb calcium. The above is the opinion of most doctors. Patients are advised to go to the hospital for consultation before using the medication, and calcium supplementation through medication needs to be adhered to and should be administered on time and in the right amount. Dairy products, soy products, eggs, nuts, animal bones, lean meats and other diets are also rich in calcium, and more calcium-rich diets can be consumed while taking calcium carbonate D3 granules. It is important to note that alcohol, strong tea, coffee and smoking should be avoided during the medication period to prevent the absorption of calcium. Calcium carbonate D3 granules should be prohibited for people with hypercalcemia, history of kidney stones, etc. If you are using digoxin, digitalis, aluminum-containing drugs, thiazide diuretics or other drugs, you should consult your doctor in advance to avoid contraindications to the use of drugs that may cause adverse reactions.