2. Oranges are ripe fruits of many kinds of oranges, such as Fuju or Zhuju of Rutaceae, and oranges refer to the fruits of a group of plants under Citrinae of Rutaceae.

3. Oranges are rich in cellulose and pectin, which can stimulate intestinal peristalsis, and have obvious effects on clearing the bowels, relaxing bowels and discharging harmful substances from the body.

4. Oranges are rich in vitamin C and vitamin P, which can enhance the elasticity of capillaries.