1, dairy products. Milk food is a kind of common food with high nutritional value, which contains high-quality protein and various nutrients, among which the content of calcium is quite high, and it is the main source of calcium for human body. Amino acids, minerals and other elements in milk food are easily digested and absorbed by human body, so many families regard milk food as a lot of tonic food. Usually you can eat more dairy products such as milk powder and yogurt. Children need calcium supplements. Lactose-intolerant friends can choose yogurt as a source of calcium supplementation.

2. Seafood products. Seafood is rich in many nutrients, such as protein, calcium, zinc and vitamins. Hairy crabs help prevent arthritis and other diseases, and have less saturated fat, which is beneficial to heart health. The calcium content in shrimp skin is very high, with an average of 99 1mg per 100g. Compared with most foods, the calcium content is much higher, and even milk is slightly inferior. Eating shrimp skin can not only supplement calcium, but also prevent arteriosclerosis and other symptoms.

3. legumes. Among legumes, the calcium content of black beans is the richest, which is twice that of meat, with an average of 224mg per 100g. Black beans also contain 18 kinds of amino acids. Eating black beans can lower cholesterol and delay aging. Patients with heart disease and hypertension can eat more in moderation.

4. vegetables. People generally don't think of using vegetables to supplement calcium. In fact, some vegetables are high in calcium. Such as mustard and black fungus. Mustard is preserved by many families because of its hard organization. Mustard is rich in vitamins, dietary fiber and ascorbic acid. Eating more mustard can play a refreshing role and prevent diseases. Auricularia auricula contains high calcium, and gum helps digestion, especially those fibrous foods that are difficult to digest. Eating more auricularia auricula can excrete impurities in the body, achieve the functions of benefiting qi, stopping bleeding and relieving pain, enriching blood and promoting blood circulation, and prevent diseases such as thrombosis and arteriosclerosis.