The main food items that can be used to supplement calcium are foods with high calcium content, including milk, beans, seafood, nuts, and some vegetables and fruits. 1, milk: fresh milk, yogurt, etc. are more suitable, you can choose fresh milk and yogurt together with drinking. Not only can you add rich calcium elements, but you can also add live bacteria to regulate the absorption function of the intestines, so as not to cause intestinal flatulence after eating. The daily intake of milk is usually 200-300ml. If some special stages of the population, such as women in pregnancy, lactation, milk intake can increase some; 2, legumes: such as soy, black beans, or soy products, etc., contains more calcium, can often be eaten in the daily to supplement calcium; 3, seafood: such as fish, you can also eat some shrimp skin, calcium supplement. But it contains more salt, do not eat in excess; 4, nuts: there are also calcium elements, such as melon seeds, peanuts, walnuts; 5, vegetables: like kelp, nori, celery, greens, relatively will also contain calcium elements; 6, fruits: some of them also contain calcium elements, like apples, black dates, hawthorn, raisins, loquat, etc.. While supplementing calcium, pay attention to vitamin D supplementation, vitamin D can be synthesized through the body’s skin. Vitamin D has the function of increasing the absorption of calcium elements in the intestine, if the level of vitamin D is low, the absorption ability is usually poor after calcium supplementation. In addition, we should pay attention to proper calcium supplementation, not too much calcium supplementation. When taking some calcium tablets, it is important to pay attention to the level of blood calcium ions, as well as the condition of urinary stones. If urinary stones are present, no further special calcium supplementation is recommended.