Carbohydrates are carbohydrates. Eating less carbohydrates may cause low blood sugar, affect metabolism, and loss of muscle. 1. Hypoglycemia: Carbohydrates are the main source of energy for the human body. Carbohydrates are directly decomposed and metabolized into glucose when they enter the body, which is then transported to various organs throughout the body to provide energy for the various cells of the organism. The brain, nervous system and other organizations are directly dependent on glucose to provide energy, if the carbohydrate intake is too low, it is easy to lead to hypoglycemia, there will be fatigue, fatigue, memory loss, dizziness and so on. 2. Impact on metabolism: some important physiological functions of the body of the material components need carbohydrates to participate in, such as antibodies, enzymes and hormones, etc. If the dietary intake of carbohydrates is too little, it will affect the body’s metabolism and physiological functions, resulting in endocrine disorders, acne, spots, rough skin, hair loss and other problems. 3. Muscle loss: carbohydrates can prevent the consumption of body or dietary protein. If the intake of carbohydrates is too low, the body in order to meet the need for glucose, it will produce some glucose through gluconeogenesis, which will cause a waste of protein in the body, resulting in muscle loss. Therefore, enough carbohydrates should be consumed in the diet to avoid the effects of too little intake on the body.