Since ancient times, food has been the order of the day, and this is the natural order of things. In today’s Chinese society, which is in a historical period of transition, people are gradually moving from the material scarcity era to the journey of poverty and prosperity, and the expectation of material enjoyment has become one of the goals of life that many people admire. As a result, the pursuit of “oral bliss” is widespread, and there is no restraint in food, and once upon a time, people with big bellies and poo are everywhere. Correspondingly, it is a cruel reality that is difficult for people to accept – diabetes, hypertension, stroke, myocardial infarction, such as the birth of the spring. Nowadays, “diabetes is a disease that comes from eating” has gradually become known. This sounds a bit sour and confusing, are we “eating wrong”? Because blood sugar levels are closely related to diet, excessive food intake can easily lead to obesity, and obesity is an important risk factor for many diseases such as diabetes. Therefore, experts at home and abroad agree that scientific management of diet is of equal importance to the prevention and treatment of diabetes. In daily life, how can people control their “mouth” in order to eat happily and healthily? It is difficult to find a single answer because of the influence of region, cultural background and eating habits. But for diabetes, there are still some common principles to follow. First, the principle of maintaining a normal weight and healthy shape. There are also regional and ethnic differences in weight and shape standards. Because weight is related to height, the body mass index (BMI) is now commonly used in national standards to describe whether an individual’s weight is normal, calculated as follows: BMI = weight (kg)/height (m) squared. The proportionality of the shape is usually measured by the waist circumference or waist/hip ratio. In China, the ideal range of BMI is: (18.5~24)kg/m2; overweight means: BMI (≥24~28)kg/m2; obese means: BMI≥28kg/m2. The normal waist circumference of Chinese people is tentatively set as: men<2250px, women<2125px. Waist circumference beyond the above range is called central obesity or abdominal obesity. Domestic and international studies have shown that obesity is an important environmental factor in the development of diabetes. The incidence of diabetes is significantly higher in obese people than in non-obese people, and the incidence decreases after effective weight control. In addition, it has been observed clinically that obese or overweight diabetic patients who lose weight can have better glycemic control. Overweight or obesity is the result of excess energy in the body and is closely related to diet. So, why does obesity cause diabetes? Under normal circumstances, the substance that guides the body to use glucose is insulin, which is like a key to a room, and various tissues and cells of the body are like a room. The function of insulin is to open the door of a room, so that glucose from outside the cell enters the cell through this door and is then processed and used. The B-cells of the pancreas are the only cells in the body that can synthesize and secrete insulin. Elevated blood glucose will stimulate the B-cells to secrete insulin and transport it to various tissues throughout the body by the blood circulation to play its physiological role. With the help of insulin, human liver, fat, muscle and other tissue cells take in glucose from the blood, so that the increased blood glucose after eating can be lowered to normal. When the blood glucose is lowered to normal, insulin secretion is rapidly reduced to avoid the blood glucose from falling too low, and then the blood glucose returns to the normal fasting level. Obese patients, especially those who are centrally obese, secrete one or more substances from adipose tissue that resist the action of insulin into the blood circulation, making insulin work less efficiently; in other words, the liver, fat and muscles resist the action of insulin, and the uptake of glucose from the blood is significantly less than normal, causing blood glucose to rise. Medically, this condition mentioned above is called insulin resistance. In order to overcome this unfavorable state, the body needs B cells to increase their workload and secrete more insulin into the blood so that blood sugar can be brought down. Over time, the B cells eventually become overstretched and overwhelmed, and can no longer maintain such a high level of insulin secretion, and their function gradually becomes exhausted, and blood glucose rises day by day, and diabetes follows. Therefore, overweight or obese diabetic patients, through lifestyle intervention, appropriate weight loss, maintain the ideal body shape is one of the basic methods of treatment of diabetes. Second, the principle of balanced diet. On the surface, a balanced diet is nothing more than maintaining "three meals a day and avoiding overeating". In fact, it really means that according to the different needs of individuals, scientific and reasonable mix, to ensure that the full range of nutrients balanced, quantitative and regular intake. This "different needs" refers to the diabetic diet plan according to the individual's body size, eating habits, labor intensity, and different pathophysiological states (such as children during growth and development, pregnant women, patients with renal insufficiency, etc.). It ensures the normal growth and development, activity requirements, and is conducive to disease control and recovery, without causing energy excess. It is dynamic and variable. In conclusion, diabetes has become a serious public health problem in today's society and a serious threat to human health. There is no time to lose, and everyone should act quickly. From the government level, there is a need to continuously educate the whole society about diabetes through various channels, so that the whole society can understand the knowledge of diabetes prevention and treatment, and eventually transform it into a social force of group prevention and treatment, so as to increase the awareness rate, diagnosis rate, treatment rate and treatment compliance rate of diabetes, and reduce the disability and pain brought by the disease. From the individual point of view, remember to maintain a healthy lifestyle at all times, diabetes is always around you and me, don't "get into trouble", to quickly jump out of the circle of excessive pursuit of "mouth" to enjoy, not afraid to "suffer ", but also to dare to "eat losses", the enjoyment of life from the "mouth" to the "eyes" of the height, usually said "good mouth, open legs" is the truth. The most important thing to remember for people with diabetes is that they need to be aware of the importance of the food. For people with diabetes, the most important thing to remember is that inner strength is the decisive factor in ultimately overcoming the disease. Inner strength is the basis for the treatment of disease, with the support of inner strength dominant without the use of drugs disease that is already three points better, while once the psychological defense collapse, the disease will take a sharp turn. Secondly, to believe in science, there is no "miracle doctor", and there is no "magic pill", superstition or gullibility rumors, will lead you astray and can not extricate yourself, incurring both money and people. Although there is no cure for diabetes yet, there is enough certainty to control it. Choose a doctor you trust and discuss all treatment measures openly and honestly. A doctor who can subsequently provide you with long-term medical guidance is the highest level, so that no matter how far you travel, you will always have a "personal" health care escort, and you will feel at ease, because diabetes is a continuous disease, requiring long-term doctor-patient You will feel at ease because diabetes is an ongoing disease that requires long-term care by doctors and patients.