Leek contains protein, carbohydrates, calcium, phosphorus, potassium, vitamin C, sulphide, glycosides and a bitter taste. It has the effects of activating blood circulation to dissipate blood stasis, warming shen and strengthening yang. Silkworm pupae are rich in protein and amino acids. It is a high  nutritional  supplement  food  for  weak  people,  aged  people  and  women  who  have just given birth to children. The combination of leek and silkworm pupae is a special dish in the south of the Yangtze River, especially in  Tongxiang. It has the effect of nourishing qi and blood, warming shen and  strengthening yang, smoothing lungs and moistening intestines and so on. It has a certain effect on chronic constipation, chronic cough and asthma, weak muscles,high blood pressure and hyperlipidemia. It also helps to eliminate fatigue and delay senility for healthy people.