Carbohydrates in food can be divided into two categories: effective carbohydrates that people can absorb and utilize, such as monosaccharides, disaccharides, polysaccharides and ineffective carbohydrates that people can't digest, such as cellulose, which are essential substances for human body. Carbohydrate is the main source of energy needed by all living things to maintain life activities.
Extended data
Carbohydrate is the main component of cell structure and the main energy-supplying substance of human body, which has important physiological functions of regulating cell activities. In terms of providing energy, carbohydrates are the most economical and main energy source for human beings. More than half of the energy needed by an average adult in a day comes from carbohydrates.
Therefore, adequate carbohydrate is very important not only to ensure adequate energy supply, but also to ensure a balanced diet and save protein. At the same time, carbohydrates are also components of cells and participate in many physiological activities, such as the formation of various glycoproteins.
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