The main causes of nausea when you eat include early pregnancy reaction, gastrointestinal digestive disorders, gastrointestinal colds and hepatitis, etc. 1, early pregnancy reaction: early pregnancy in women, due to changes in the body’s hormone levels, there will be nausea, vomiting, regurgitation symptoms, you can reduce discomfort by improving dietary habits, such as a light diet, eat less and more meals. Try to eat less greasy, cold food, avoid fumes, paint and other irritating odors aggravate nausea, generally in about 12 weeks of pregnancy symptoms can gradually disappear; 2, gastrointestinal digestive disorders: gastrointestinal digestive disorders lead to food can not be digested in a timely manner, may appear a food nausea symptoms, patients are advised to take oral digestive enzymes, gastrointestinal power drugs, such as compound digestive enzymes, Mosapride, etc.; 3, gastrointestinal type Cold: Gastrointestinal type cold causes gastrointestinal discomfort, nausea and vomiting as soon as one eats. Starvation therapy can be used appropriately with herbal treatment such as Huo Xiang Zheng Qi tablets, Huo Xiang Zheng Qi water, etc. At the same time, attention should be paid to hydration, and salt and sugar water can be chosen to avoid water and electrolyte disorders; 4. Hepatitis: acute and chronic hepatitis, patients can have abnormal liver function and symptoms of weakness, nausea and poor appetite. Blood tests are needed to refine the etiology. Liver preservation treatment while targeting the etiology. Precautions After the symptoms of nausea and vomiting appear if they are not relieved after adjusting the diet structure, you should seek medical examination promptly. If the nausea is caused by early pregnancy reaction, you should pay attention to the precautions related to pregnancy to avoid blind medication to damage the health of the fetus. It may also be caused by gastritis, gastric ulcer, or occupying lesion in the stomach, which requires clear diagnosis and symptomatic treatment. In daily life, you should eat regularly, do not overeat, and exercise appropriately after meals to promote gastrointestinal motility and reduce stomach discomfort.