Sugar is a carbohydrate. Carbohydrate is closely related to human health and is one of the substances that supply human energy. Sugar is not only sweet, but also can be quickly absorbed by organisms and transported into the blood. Therefore, sugar is as important as fat and protein, and it is an indispensable nutrient for human body.

Carbohydrate can generate heat in human body, and each gram of carbohydrate can generate about four calories. All activities of the human body need to consume energy, so the sugar in the human body is like the fuel of the engine, which supplies energy continuously.

Although sugar is one of the indispensable substances for human body, you should not eat too much. Eating too much is not good for your health.