The stomach is not good people thin in the usual diet can eat more high protein, crude fiber food, such as milk, eggs, fish, sweet potatoes, corn, oatmeal, etc., you can also drink yogurt to promote gastrointestinal peristalsis. 1. Poor gastrointestinal absorption may be caused by gastrointestinal diseases, liver, gallbladder and pancreatic diseases, which can lead to small intestinal absorption dysfunction, can not absorb the nutrients in the food, which leads to malnutrition, and poor gastrointestinal digestion may also lead to diarrhea, abdominal pain, etc., can be taken under the guidance of a doctor to regulate the intestinal flora of probiotics. 2. Poor gastric absorption is also related to gastrointestinal digestive disorders, fatigue, late night, irregular diet and other reasons for damage to gastrointestinal function caused by gastric peristalsis becomes weak, it is difficult to digest and absorb, you can eat some milk, eggs, fish, sweet potatoes, maize, porridge, porridge, rice and other foods, to reduce the burden on the intestines and stomach. Eat less and more meals to promote nutrition, while adjusting the dietary structure, appropriate activities, eat more fresh fruits and vegetables, and eat a light diet.