It is recorded in Compendium of Materia Medica that buckwheat has the functions of "invigorating stomach, benefiting qi and nourishing spirit". Buckwheat contains a lot of nutrients such as rutin, cellulose, selenium and vitamins. It is not only suitable for preventing and treating hyperlipidemia, hypertension and diabetes, but also suitable for preventing and treating obesity, digesting fat and maintaining the normal cardiovascular system. When the dog days come, many people will feel "bitter summer" because of the rising temperature, their appetite will drop, and their food intake will be significantly reduced compared with other seasons. At the same time, there will be fatigue, listlessness, low work efficiency and weight loss. Buckwheat can promote spleen and stomach transport and increase appetite, so it is especially suitable for people with poor appetite in "bitter summer". In addition, buckwheat also has an alias called "Qingchangcao", which has a very good effect of clearing the intestines and relaxing bowels, and is also very beneficial to women who want to achieve slimming effect. It should be reminded that buckwheat is good, but it is cool and should not be eaten at one time. People with spleen and stomach deficiency and cold, poor digestive function, frequent diarrhea and sensitive constitution are not suitable for eating.