1. Milk: Half a pound of milk contains 300 mg of calcium. It also contains a variety of amino acids, lactic acid, minerals and vitamins, which promotes the digestion and absorption of calcium. Moreover, the calcium in milk is easier for the human body to absorb. Therefore, milk should be the main food for daily calcium supplementation. Other dairy products, such as yogurt, cheese, and milk tablets, are good sources of calcium. Health tip: You also need to be selective when drinking milk in summer. 2. Kelp and dried shrimps. Kelp and dried shrimps are high-calcium seafood. Eating 25 grams a day can supplement 300 mg of calcium. And they can also lower blood lipids and prevent arteriosclerosis. Boiled kelp with meat or cooked and served cold, it is a good delicacy. The calcium content in dried shrimps is higher, with 25 grams of dried shrimps containing 500 mg of calcium. Therefore, using dried shrimps to make soup or stuffing is a good choice for daily calcium supplementation. Friendly reminder: People who are prone to allergies to seafood should eat with caution. 3. Soy products: Soybeans are high-protein foods and are also high in calcium. 500 grams of soy milk contains 120 mg of calcium, and 150 grams of tofu contains 500 mg of calcium. Other soy products are also good calcium supplements. Friendly reminder: Soy milk needs to be boiled 7 times before it can be eaten. Tofu cannot be eaten with certain vegetables, such as spinach. Spinach contains oxalic acid, which can combine with calcium to form calcium oxalate conjugates, which hinders the body's absorption of calcium. Therefore, tofu and other soy products should not be cooked with spinach. However, if soy products are cooked with meat, they will be delicious and nutritious. 4. Animal bones More than 80% of animal bones are calcium, but they are insoluble in water and difficult to absorb. Therefore, when making food, you can crush them in advance, add vinegar and cook them slowly over a slow fire. When eating, remove the floating oil and add some green vegetables to make a delicious soup. Friendly reminder: Fish bones can also supplement calcium, but be careful to choose the right method. Dry-fried fish and braised fish can soften the fish bones, making it easier to absorb calcium, and can be eaten directly. 5. Vegetables There are also many high-calcium varieties in vegetables. 100 grams of potherb mustard contains 230 mg of calcium; Chinese cabbage, rapeseed, fennel, coriander, celery, etc. also contain about 150 mg of calcium per 100 grams. Friendly reminder: Eating 250 grams of these green leafy vegetables every day can supplement 400 mg of calcium