Can pregnant women eat leeks? During pregnancy, diet is a very important link. Improper diet will have many effects on the fetus and the pregnant woman herself. At the same time, it should be noted that pregnant women also need certain nutrients and healthy foods to ensure their health. So, many people would like to know, can pregnant women eat leeks? The effects of leeks: Leeks are a very common vegetable with very obvious effects. First of all, leeks are rich in vitamin C, which helps improve the body’s immunity.