We all know that diabetics need to pay attention to the need to control the sugar in food. From the biological point of view, the main reason of diabetic patients is that the body can't absorb the glucose digested by the kidney, and the renal tubules in the kidney can't absorb the glucose in the original urine twice, so the phenomenon of urine sugar appears. Not only can the body not absorb digested glucose, but the main function of insulin in controlling blood sugar concentration in the human body is to reduce insulin and glucagon and raise blood sugar. The ratio of insulin to glucagon is unbalanced, indicating that insulin content is very low and glucagon content is high.

When the content of glucagon in the human body is too high, it means that the blood sugar concentration in the body is too low and the brain will feel hungry. At this time, people will easily feel hungry and eat a lot. The original blood sugar concentration in the body is higher than the normal level. Under this operation, the blood sugar concentration will be higher, which will cause the blood in the human body to be too viscous and easy to block blood vessels, thus causing symptoms such as dyspnea and fatigue, and in severe cases, it will lead to syncope and organ failure.

Knowing this mechanism, we know that diabetics should not eat foods with high sugar content, but should drink more water to excrete excess sugar from their bodies.

Fruits are rich in micronutrients, so doctors always advise us to eat more fruits and vegetables to supplement our nutrition. Can pitaya be eaten? The answer is no, pitaya is a kind of fruit with high sugar and calorie. If diabetic patients eat it, it will lead to a rapid increase in blood sugar concentration in the body, which may lead to the aggravation of the patient's condition, and patients may need to inject too much insulin to alleviate this symptom. So as to make the body feel comfortable. If the patient can calculate the sugar content in the food and correctly and actively calculate the insulin to be injected, the eating in normal life will not be greatly affected. After all, the human body needs nutrition.