High blood sugar has the potential to make the patient thin. Because when diabetes patients have high blood sugar, it means the lack of insulin in the body is more serious or there is insulin resistance, resulting in glucose can not be used by various tissues and organs, a large amount of glucose is eventually excreted from the urine, the body will break down its own protein and fat to provide heat in order to maintain normal function, the body’s own protein and fat is broken down, people will become thinner and thinner, so the untreated diabetes The patient with untreated diabetes becomes thin, often because the blood sugar is too high, is a kind of pathological wasting. If you are a type 2 diabetic, it is best to use insulin for a short period of time, and if you are a type 1 diabetic, you should use insulin for life to bring down your blood sugar, reduce your body’s consumption, and gain weight.