Eating dog meat in the summer of solstice may be related to the fact that dog meat can supplement the body and create ominous legends. According to relevant records, in the second year after Qin Degong ascended the throne in the Warring States period, June was extremely hot and epidemic was prevalent. Qin Degong ordered his subjects to kill dogs to ward off evil spirits according to the saying that "dogs are yang animals and can bring misfortune". Later, the custom of killing dogs in the summer of solstice was formed.

"Eat dog meat from summer to day, and the west wind detours", which means that when people eat dog meat from summer to day, their bodies will be able to resist the invasion of the west wind and rain, catch fewer colds and be healthy. It is based on this beautiful wish that the unique folk food culture of "dog meat from summer to day" in Guangdong and Guangxi has been achieved.

The custom of eating dog meat in summer has been passed down to this day. On the one hand, there are superstitious reasons such as avoiding evil spirits, and some citizens think that "eating dog meat from summer to Sunday can be full of energy and good luck" and "can be promoted and made rich"; On the other hand, it is because dog meat nourishes and warms the stomach. After the summer solstice, farmers have to harvest and cultivate, and their physical strength is very high. Eating dog meat can strengthen their physical strength. Dog meat is a hot food, so many people just taste it symbolically now. Many people drink a bowl of herbal tea before and after eating dog meat.

Eating dog meat in the summer of solstice contains a certain theory of TCM health preservation. Traditional Chinese medicine is known as "nourishing yang in spring and summer and nourishing yin in autumn and winter". That is to say, the temperature rises gradually in spring and summer, people go out one after another, activities increase relatively, and sweating increases. Especially in summer, the summer heat is pressing, which often leads to excessive yang, or excessive gluttony of cold food and cold food because of heatstroke prevention, which makes the yang in the body weak.

Don't record that dog meat "protects the five internal organs and makes up for injuries", while Biography of Lin Yi says that it "makes up lung qi, strengthens kidney qi, strengthens camp and health, and strengthens waist and knees". Chinese medicine believes that eating dog meat often is beneficial to deficiency of both spleen and kidney, fullness of chest and abdomen, abdominal distension and edema, soreness of waist and knees, cold malaria and chronic ulcer.

Eating dog meat in the summer of solstice should also be enough. Don't eat too much "blind tonic" to avoid gastrointestinal diseases such as indigestion.