In the treatment of diabetic foot, diabetic foot gangrene is the result of coagulative necrosis combined with evaporation of water from the necrotic tissue to dryness, mostly seen at the end of the extremities, such as in diseases such as atherosclerosis, thrombo-occlusive vasculitis and frostbite. At this time, the arteries are blocked while the veins are still open, so the necrotic tissue has less water, plus evaporation in the air, so the lesion area is dry and crumpled, dark brown, and there is a clear demarcation line between the surrounding healthy tissue. At the same time, because the necrotic tissue of the diabetic foot is relatively dry, it can prevent the invasion of bacteria and also inhibit the autolytic decomposition of necrotic tissue. As a result, dry gangrene is generally less infected with spoilage bacteria. So, how should patients with dry gangrene of the diabetic foot diet? 1, to ensure that carbohydrates: for patients with diabetic foot, to ensure that 200-350g of staple foods per day, such as rice and noodles are rich in sugars, is an indispensable nutrient for patients with diabetic foot. 2, sufficient protein: diabetic foot patients should have a higher intake of protein in their diet than the average person, such as 60kg body weight patients, should consume 90-120g of protein per day to ensure the daily needs. 3, limit the fat: diabetic diet fat intake, such as 60kg weight patients, the daily intake of fat should be below 36g. 4, the composition of the three major nutrients in a reasonable proportion: under the premise of the total calorie determination, the appropriate increase in carbohydrate content, to ensure adequate protein supply, reduce fat, especially the intake of animal fat, and limit cholesterol, which is also the diabetic foot disease diet considerations. 5, high fiber diet: the daily need for fiber composition of about 20% of the total. In life, commonly used rice bran, bran, corn husk, beet crumbs and seaweed plants made of cakes and other fiber foods, is the disease foot patients to prevent various complications of healthy food. 6, avoid spicy food: diabetic foot patients in the daily diet should avoid spicy food, due to diabetic patients more than elimination of grain, good hunger, thirst, Yin deficiency for this, dry heat for the standard, and spicy food such as chili, ginger, mustard, pepper and other warm nature, easy to consume Yin, aggravate the dry heat, so diabetic patients should avoid eating such condiments. 7, eat a small amount of fruit: a small amount of fruit, the principle of “food for fruit”. For example, every day can reduce the main food, and eat a certain amount of fruit. Fruits contain mostly fructose, which is sweeter than sucrose, but is absorbed more slowly than glucose, and the effect of raising blood sugar is also very slow, and at the same time can supplement dietary fiber and vitamins, which is a useful supplement to diet control. 8, avoid eating fruit on an empty stomach: diabetic foot avoid eating fruit after meals, which is also the diabetic foot disease diet considerations. It is best to choose to eat at extra meal times, but also directly as extra food, both to prevent hypoglycemia, but also to keep blood sugar does not occur large fluctuations. Choose low-sugar fruits. Fruits with the highest sugar content are dried dates, cinnamon and persimmon cake, should not be the preferred food. 9, low sodium diet: taste should be light, try to use low sodium diet to prevent the occurrence of hypertension. General daily limit salt within 10g is good. 10, do not eat too much: to eat less, do not eat a lot is also a diabetic foot disease diet considerations. Eating a lot may cause a rapid rise in blood sugar, and if the high blood sugar lasts for a long time, it will increase the burden on the pancreas. High blood sugar lasts for 2 hours, aggravating the cytotoxic effect of high blood sugar, which can cause pancreatic damage, edema, etc. 11, stay away from smoking and alcohol: long-term alcoholism on diabetes is multifaceted, excessive drinking can occur hyperlipidemia, long-term drinking can cause nutritional deficiencies and is not good for the liver. Often cause hypoglycemia, excessive blood sugar fluctuations, ketoacidosis and other complications, the control of diabetes is not conducive, so oral hypoglycemic drugs and insulin injections and other diabetic patients to prohibit alcohol, to “guests tea as wine” is better. Chinese medicine believes that smoking can make the fire heat within the smoke, drinking alcohol can make damp heat within the attack, both are pungent warm consumption of fluid, very harmful to diabetic patients, so should be limited. 12, limit the intake of sugar: diabetes and diabetic foot patients should strictly limit the intake of white sugar, brown sugar, honey, jam, sweet snacks, chocolate, sugary drinks and sweet fruit juice, because most of these foods contain more glucose, sucrose, contains high calories, absorption will significantly increase blood sugar. There have been cases where diabetic patients have eaten large amounts of cola and ice cream due to thirst, resulting in diabetic ketoacidosis or hypertonic coma, which is life-threatening.