1, weak stomach and intestines: leek taste Xin sex warm, very easy to Xin and fire, containing a large number of indigestible cellulose, weak spleen and stomach will stimulate the stomach and intestines after eating, causing bloating, abdominal pain, diarrhea and other discomforts.

2, yin deficiency and internal heat: leek temperature, warm kidneys to help the efficacy of yang, suitable for yang deficiency, yin deficiency and internal heat should not be eaten, so as not to aggravate the heat, dry mouth and throat discomfort. In addition, early and mid-term diabetes is a Yin deficiency body, also should not eat leeks.

3, kidney disease patients: leeks are rich in potassium, potassium into the blood, need to be metabolized through the kidneys, increase the burden on the kidneys, so kidney disease patients are not recommended to eat leeks.

4, digestive system disease patients: peptic ulcer, peptic bleeding history patients and Crohn's, inflammatory bowel disease and other digestive system abnormalities patients should not eat.

5, eye disease patients, acne patients should also not eat leeks.