Leeks are a good vegetable to eat in spring. Tender and fresh leeks in spring are the best of the year. Leeks are rich in carotene, vitamin C, folic acid, potassium. There is also a large amount of fiber in leeks, which can accelerate bowel movement and prevent constipation. Leeks contain isothiocyanates, and antibacterial effect.

Spring is the high incidence of allergic diseases, and lettuce contains substances that can assist in resisting allergies and relieve the symptoms of allergy sufferers. Lettuce can also enhance the secretion of gastric juice and other digestive juices and promote the secretion of bile, which is good for digestion. Lettuce is rich in potassium, promote urination, maintain water balance function, hypertension and heart disease patients often eat, a lot of benefits.