Calcium deficiency is better to eat foods with high calcium content, including eggs, dairy, fish and shrimp, vegetables, beans and so on. 1. Eggs: every 100 grams of eggs contain 56 mg of calcium, every 100 grams of duck eggs contain 62 mg of calcium, every 100 grams of quail eggs contain 55 mg of calcium. 2. Milk: Every 100 milliliters of milk contains 104-120 milligrams of calcium. 3. Fish and shrimp: per 100 grams of sea bass contains 138 mg of calcium, per 100 grams of river shrimp contains 325 mg of calcium, per 100 grams of shrimp skin contains 990 mg of calcium. 4. Vegetables: per 100 grams of rape contains 108 mg of calcium, per 100 grams of beans contains 135 mg of calcium, per 100 grams of seaweed contains 262 mg of calcium. 5. Beans: every 100 grams of soybean contains 123 mg of calcium, every 100 grams of tofu contains 164 mg of calcium. The body lack of calcium can be appropriate to increase the intake of the above foods, but if there is a pathological calcium deficiency, you need to follow the doctor’s advice to use calcium gluconate, vitamin D and other drugs for treatment.