Postpartum calcium supplement can include calcium D, calcium acetate, tetra pak, etc. These calcium tablets contain high calcium content, which can be combined with vitamin D3 to promote calcium absorption. Usually, you can eat more foods rich in calcium, such as lean meat, fish and shrimp, and drink bone soup and dairy products appropriately. Get more sunshine and exercise outdoors. Calcium supplementation can be taken before going to bed or after meals at night. However, calcium tablets should not be taken with milk. Drink milk every 1~2 hours after eating calcium tablets.