Patients with elevated blood glucose are recommended to have mainly vegetable oils, with olive oil as the first choice. The diabetic diet is a reasonable and balanced diet that maintains the intake of fats, proteins and carbohydrates, keeps the nutrition balanced, and is conducive to blood sugar control. For the intake of fatty foods, diabetic patients should pay attention to the following points: First, high blood sugar and diabetic patients are recommended to be mainly vegetable oils, such as kale oil, corn oil, canola oil, soybean oil, peanut oil and other kinds of vegetable oils. Avoid eating fatty meat and fatty oil to reduce the saturated fatty acid content. Second, the intake of oil should not be too much, at about 15-20g per day. Third, avoid eating other high-fat foods at the same time, such as animal skin foods and various fatty meats. Fourth, pay attention to the processing of food, avoid fried food, so as to avoid too much oil, the intake of total calories over the limit and cause weight gain, but also affect the control of blood sugar.