The occurrence of osteoporosis is related to many factors, such as genetics, endocrine, living habits, physical activity and dietary structure. Among the dietary factors, nutrients that are more closely related to osteoporosis include calcium, phosphorus, vitamin D and protein. From the perspective of diet and nutrition, reasonable choice of food and change of poor dietary habits can play a role in preventing osteoporosis. Adjusting the dietary structure to obtain abundant calcium The calcium and phosphorus needed by the human body come from food, so the calcium and phosphorus in the diet directly affect the metabolism of bone. Research has confirmed that a calcium-rich diet is good for bone reconstruction and prevents bone loss, while people with a low-calcium diet are more likely to suffer from osteoporosis. The traditional food of our population is mainly grain and vegetables, and animal food such as milk, fish, meat and eggs are consumed in small amounts. Such a food structure is low in calcium, protein, vitamin D and so on. Therefore, increasing the intake of animal food and soybean and its products is one of the important measures to prevent and treat osteoporosis. Most foods contain different amounts of calcium, and milk and milk products contain higher calcium and have higher absorption rate, which is the most economical and simple way to obtain calcium. The main factors in the diet that facilitate calcium absorption are: ① Vitamin D can promote active calcium absorption. ②Lactose can promote calcium absorption, and the concentration of lactose is proportional to the degree of calcium absorption. ③Dietary high-quality protein and some amino acids such as lysine and arginine are beneficial to calcium absorption, especially lysine can increase the absorption of calcium. Dietary factors that are not conducive to calcium absorption: ① Phytic acid in cereals can form insoluble calcium phytate with calcium. ② Oxalic acid in vegetables can form insoluble calcium oxalate when combined with calcium. ③ When there is too much dietary fiber, the glyoxalate in it can combine with calcium. ④When there is too much fat in the diet or poor digestion, fatty acids combine with calcium to form calcium soap, and calcium cannot be absorbed and utilized. The ratio of calcium to phosphorus in the diet also affects the absorption and utilization of calcium. Too much phosphorus in the diet can cause calcium-phosphorus conjugates to precipitate in the intestine, reducing calcium absorption. When the ratio of calcium and phosphorus is 1:1, it is conducive to the absorption and utilization of calcium. The dietary calcium and phosphorus ratios of our residents are seriously inverted, i.e., calcium intake is low, while phosphorus intake is high. Therefore, food diversification, increasing calcium intake and reducing phosphorus intake are beneficial to prevent and treat osteoporosis. Calcium absorption requires vitamin D. Therefore, in your daily diet, pay attention to consume more foods rich in vitamin D, such as egg yolk and animal liver.