1. Patients with yin deficiency and excessive fire cannot eat leeks, especially if the patient has fever in the palms and soles of the feet, night sweats, high blood pressure, etc.
2. Patients who are prone to allergies should not eat leeks.
3. Pregnant women should not eat leeks to prevent leeks from exciting the uterus and causing some discomfort to pregnant women.
4. Patients with inflammation, such as oral ulcers, tonsillitis, otitis media, etc., should not eat leeks.
5. Patients with gastrointestinal diseases should not eat leeks, especially those with chronic gastritis. After eating leeks, it can easily cause symptoms of stomach discomfort such as heartburn, burping, and acid reflux.