A day without food nausea and vomiting, may be related to excessive hunger, but also may be related to suffering from gastrointestinal diseases. 1. Excessive hunger: Under normal circumstances, the human body needs to eat three meals regularly. If you don’t eat for a day it will affect your body’s normal functioning, causing stomach discomfort and inducing a hypoglycemic reaction. This time may appear nausea, want to vomit and other clinical symptoms. This situation must pay attention to timely eating, to ensure adequate intake of nutrients. 2. Gastrointestinal diseases: Gastrointestinal diseases such as acute and chronic gastritis and functional dyspepsia may also induce the above symptoms. Under the guidance of the doctor to take domperidone tablets, mosapride and other drugs to promote gastrointestinal dynamics, as well as omeprazole, lansoprazole and other acid-suppressing drugs, can help improve the symptoms of nausea and vomiting. Usually must pay attention to three meals on time, not excessive hunger, also can not overeat. Drugs need to be used under the guidance of a professional physician, do not self-medicate arbitrarily.