Although leek has many benefits to human body, not the more the better. Compendium of Materia Medica once recorded: "Eating more leeks makes people dizzy, especially after drinking." Modern medicine believes that people with hyperactivity of yang and febrile diseases are not suitable for eating.

Leek contains a lot of crude fiber, which is not easy to digest and absorb, so you can't eat too much leek at a time, otherwise a lot of crude fiber will stimulate the intestinal wall and often cause diarrhea. It's best to control each meal at 100 g to 200 g, not more than 400 g.