Emperor Citrus as a common food, does not have the property of fire or fire, and fire and fire are not scientific concepts. Every 100 grams of Kao Kao contains 57 calories, of which 12.58 grams of carbohydrates, 0.2 grams of fat, 1.2 grams of protein, 0.1 grams of fiber, moderate consumption, can provide more nutrients for the human body, and also contains rich vitamin C, riboflavin, etc., the health of the population can be according to their own preferences for moderate intake. However, if excessive intake of emperor citrus, may lead to the conversion of carbohydrates into fat, making the human body fat, triggering obesity and other problems, at the same time, diabetic patients should not be ingested in large quantities, children also need to be cleaned after ingestion of oral cavity, in order to avoid dental caries. Although the emperor citrus is rich in nutrients, but also need to be combined with other foods together to ensure nutritional balance.