Primary prevention is our first line of defense against osteoporosis, which is actually a healthy diet and lifestyle habits. The reason is to accumulate enough calcium when you are young so that you can retain enough bone mineral content when you get old and lose calcium. This includes paying attention to proper dietary nutrition and consuming more foods high in calcium and phosphorus, such as fish, shrimp, shrimp skin, kelp, milk (250ml contains Ca300mg), dairy products, bone broth, eggs, beans, refined grains, sesame seeds, melon seeds, green leafy vegetables, etc. Adhere to a scientific lifestyle. Adhere to appropriate physical exercise, especially exercise that makes the body burden a certain weight, such as jogging. Because the bones are distributed according to the direction of the force, where the force is more, where the bone is strong. Therefore, astronauts can produce severe osteoporosis because of weightlessness. In addition, the melanocytes in the human skin in the sunlight will synthesize vitamin D. And vitamin D can promote calcium absorption, so to receive more sunbathing. Try to get rid of “risk factors”, do not smoke, do not drink alcohol, do not drink coffee, strong tea and carbonated beverages, eat less sugar and salt, do not consume too much animal protein at one time, marry later, have fewer children, do not breastfeed for too long, preserve calcium in the body as much as possible, enrich the calcium pool, and increase the peak bone mass to the maximum is the best measure for the prevention of osteoporosis in the later stages of life. The best measure for the prevention of osteoporosis in the late life. The above is the primary prevention of osteoporosis. Everyone can do it.