Disease analysis: Diabetes mellitus is a group of metabolic diseases characterized by hyperglycemia due to insulin secretion deficiency and/or insulin dysfunction. Type 2 diabetes mellitus is mainly characterized by the coexistence of insulin resistance and insulin secretion deficiency. Suggestions: People with diabetes should eat three meals regularly and quantitatively, and do not eat high-calorie foods such as fried and porridge. Sweet potatoes and taro are starchy foods, which are also converted into sugar when they enter the human body. They should eat less. Peanuts contain more oil and high calories, so they should eat less. The dietary principle is to control the total calorie intake and exercise more.