Tangerine is warm, eating too much is easy to catch fire. Tangerine taste sweet and sour, warm, into the lung, stomach meridian, has the role of appetizing, moistening the lungs to quench thirst. Because of the “warmth” of oranges, should not be eaten in excess, eat easy to generate phlegm and dampness, it will be “on fire”, promote stomatitis, periodontitis and other diseases. Oranges are rich in carbohydrates (glucose, fructose, sucrose), vitamins, minerals and a variety of organic acids, which can regulate the body’s metabolism, help digestion and improve appetite. 100g of oranges contain 10.3g of sugar, and you should pay attention to cleaning your mouth after eating them. Therefore, you can eat oranges appropriately, and clean your mouth in time after eating them to avoid a large amount of sugar staying in the mouth for a long time, resulting in mouth and tongue sores and other symptoms.