[Machine Translation] Hyperglycemia and diabetes are health problems caused by dietary habits that, if left untreated, can lead to cancer, heart disease, cerebrovascular disease, and dementia, as well as the so-called three major complications. Furthermore, it has been pointed out that it is also associated with infertility and non-alcoholic steatohepatitis. Moreover, one out of every four people over the age of 20 in Japan has diabetes or has a pre-diabetic condition. However, the diabetes diet recommended by the Japan Diabetes Society, a high-carbohydrate diet with calorie restriction, not only does not cure diabetes, but in fact worsens it. Furthermore, the target intake of energy and the three major nutrients recommended by the Ministry of Health, Labor and Welfare for the prevention of lifestyle-related diseases will further worsen the health of the people! What should we do? The author, a former associate professor at the Graduate School of Medicine, Kyushu University, specializing in public health and preventive medicine, explains how to prevent, improve, and treat hyperglycemia and diabetes, which cause an increased risk of lifestyle-related diseases, without overdoing it, through daily dietary habits. The author's practical and medical explanations will help to clarify the specifics of the disease.