Because vitamin D and vitamin K can promote the absorption of calcium, so you want to promote the absorption of calcium should eat foods rich in vitamin D, such as fish, soy milk, mushrooms, etc.. 1. Fish: Fish contains vitamin D and vitamin K, which can help the body effectively supplement vitamin D. It is recommended to eat tuna, eel, trout and other foods. 2. Soymilk: Soymilk has high nutritional value, which is rich in vitamin D, vitamin K, vitamin C, iron and other nutrients. Drinking soymilk properly can promote the body’s absorption of calcium. 3. Mushroom: Mushroom has high nutritional value, which contains a lot of vitamin D, vitamin K, which is conducive to the body’s absorption of calcium. Usually, we must have a balanced diet and ensure sufficient intake of vitamin D. It should be noted that appropriate sun exposure can also help promote the production of vitamin D. If the deficiency of vitamin D and vitamin K is more serious, oral vitamin D tablets and vitamin K tablets can be taken as prescribed by the doctor to improve the condition.