Not eating sugar (usually referred to as monosaccharides such as glucose, or disaccharides such as sucrose) for a month will have no effect on your body as long as you eat a balanced diet. The three main functional nutrients in the human body are carbohydrates, fats and proteins. For healthy adults, carbohydrate energy supply accounts for about 55% to 60%, is the main energy supply nutrients. Carbohydrates are mainly obtained from staple foods such as rice, noodles and corn. Sugar is one of the routes of carbohydrate acquisition, but not the main one; staple foods are the main route of carbohydrate provision. Among the foods consumed, vegetables and many fruits, snacks contain sugar. So even if you don’t eat sugar for a month, the carbohydrates your body needs can be obtained from other diets, and as long as you eat the right proportion of fats and proteins, it won’t have a significant impact on your body; on the contrary, reducing the intake of sugar reduces the accumulation of energy, which can help you to control your weight.