There is no scientific evidence to prove that snacks can nourish the stomach. Stomach is not good, most of the cases and their own eating habits and lifestyle, such as prefer spicy stimulation, late to bed and late to rise, do not eat breakfast, overeating, only meat, not vegetarian, not wash their hands before and after meals, resulting in Helicobacter pylori infection, and so on. So to ensure gastrointestinal health, first of all, we must develop good living habits, so that early to bed and early to rise, three meals a day at regular intervals, a light diet, meat and vegetables, pay attention to personal hygiene, and maintain a moderate amount of exercise. On this basis want to eat snacks, you can have a moderate amount of fruit, nut intake, you can also drink some fresh yogurt, supplement lactic acid bacteria to promote digestion. When choosing snacks, snacks with excessive food additives and stimulating spices are not recommended. If the stomach upset is serious, it is recommended to seek medical treatment in time.