Eating leeks can tonify the kidney. People with tonsillitis, nasal empyema and otitis media can't eat leeks. Eating more is easy to get angry, so people with yin deficiency and excessive fire should not eat more. Stomach deficiency with heat and indigestion is not suitable for eating. Summer leek is aging, with a lot of coarse fiber, which is not easy to be digested and absorbed by people's intestines and stomach. In addition, gastrointestinal peristalsis in summer will cause gastrointestinal discomfort or diarrhea, so it is not advisable to eat more in hot summer. Although leek has a strong essence, excessive consumption will lead to kidney failure and watery eyes. So don't eat it every day.