1. The first is the elderly. The elderly should eat as little oranges as possible, and those with weak gastrointestinal, kidney, and lung functions should not eat too much to avoid causing abdominal pain, soreness and weakness in the waist and knees and other symptoms.

2. Next are people with Yin deficiency constitution. This type of people should try not to eat oranges. According to the theory of traditional Chinese medicine, oranges are warm in nature and can easily lead to internal heat if eaten in large quantities. Especially for people with a constitution of deficiency of yin and excess of yang, it is best to eat less, otherwise they will cause sores on the mouth and tongue, dry mouth and throat. Symptoms such as dry pain and constipation. It is recommended to eat some citrus to avoid symptoms of internal heat.