Dead bone can occur at any age but is most common between the ages of 31-60, with no gender difference. It starts with vague or dull pain in the hip joint or its surrounding joints, and worsens after activity. If you can cooperate with the diet, you can get twice the result with half the effort. The diet of dead bone is related to the nutritional supplement and resistance enhancement of patients with osteonecrosis, so you must pay special attention to it in your life. Femoral head necrosis has been transformed from a rare disease to a multi-morbidity and common disease, a good diet can help the recovery of femoral head necrosis. What foods are best not to eat for patients with dead bone? 1, stimulating food: avoid eating or eat less pepper, spiny pepper, and avoid eating or eat less tomatoes, spinach, amaranth, wild rice, eggplant, potatoes, etc., avoid drinking alcohol and carbonated beverages, drink less strong tea and coffee, avoid eating shellfish, dried fruit, food with MSG additives and preservatives. 2, high-fat food: avoid eating high-fat food (such as beef, pork fat, etc.) and too acidic, alkaline, salty food and synthetic food, pickled food, fried and deep-fried food. Salt is limited to 6 grams per day is good. 3, sweet food: avoid or eat less sweet food, such as sweet cakes, sweet snacks, candy, ice cream, chocolate, etc.. Dead bone patients can drink some bone soup, in addition to dairy products, another food containing more calcium is animal bone soup. Also in bone broth there are fatty acids as well as proteins, where fatty acids include saturated and unsaturated fatty acids. Protein, lipids and calcium are all important substances in the formation of bones. Therefore, drinking more bone broth is also helpful in treating dead bones. However, there are fewer calcium ions in bone broth and the concentration of calcium is low, so when cooking the soup, the bones are first smashed and cracked, which increases the rate of dissolution of minerals and proteins.