It is said that leeks and bean sprouts help to eliminate toxins. Eugenics believes that if both husband and wife eat more leeks, mung bean sprouts, animal blood, kelp, etc. during pregnancy, it will help eliminate toxins in the body and create a good environment for embryo growth and development. A good internal environment is very important for the initial embryo and is beneficial to the development of the fetus. In addition, eating leeks and mung bean sprouts can also replenish essence and strengthen yang, which is conducive to egg fertilization.