2. Oranges are prone to fever and high in nutrients. After eating a lot of oranges, the heat generated cannot be completely converted into fat storage and cannot be consumed in time, so it will accumulate and get angry. Eating more will also have adverse effects on the mouth and teeth. If eating oranges has caused excessive internal heat, you can eat some fruits that will not cause excessive internal heat, such as some cold fruits with high moisture content, such as pears, oranges and grapefruit.