Leek is just a kind of food, and does not have any role in the return of milk, but the nutrients contained in leeks can provide the body with the required nutrients. Leek is a common food in life, rich in nutrients. Every 100g of leek contains 4.6g of carbohydrates, which can increase energy for the body; contains 2.4g of protein, which helps the growth of tissues; contains 0.247g of potassium, which helps to maintain water and electrolyte balance. Moderate consumption of leeks can supplement the body with the above nutrients and maintain the normal physiological function of the body. As leek as a common food, does not have the effect of milk return. If you want to return to the milk, you can take ergometrine, estrogen, vitamin B6 and other drugs under the guidance of the doctor. Daily consumption of leeks will not play the role of return to milk, can be consumed in moderation.