Clomiphene and letrozole are commonly used to promote ovulation. Food therapy can also be used to promote ovulation by eating foods high in phytoestrogens, such as beans and soy products, including red beans, black beans and soybeans, and drinking soy milk every morning. You can also eat cereals such as corn and wheat, and protein-rich foods such as meat, milk and eggs, especially eggs, which are rich in protein. For women during pregnancy preparation, it is recommended to eat more fresh fruits and vegetables, which are rich in vitamin C and are beneficial to egg development. Women who are preparing for pregnancy should also have a well-balanced diet and avoid stimulating foods.