From the perspective of Western medicine, after eating a large amount of food, the gastrointestinal tract requires more blood, and the blood that rises to the head is relatively reduced, so for some people with poor health or middle-aged and elderly people will experience dizziness. From the point of view of Chinese medicine, this is due to the lack of spleen qi, the spleen transports water and grain essence, after eating fatty, sweet and thick meat, fried food or rice, the spleen qi is insufficient, the function of rising clear qi will be reduced, the spleen is the main transport and transformation, transporting water and dampness, transporting water and grain essence, this transport and transformation function is also reduced, clear yang does not rise, dampness does not transform, dampness is heavy, it will lead to physical fatigue, tiredness or dizziness. Therefore, according to the analysis of different situations, normal meals try to ensure that seven points full, do not eat too much, and maintain a reasonable diet structure, do not consume fatty, sweet and greasy meat.