Dizziness that occurs after a day without eating may be related to hypoglycemia and anemia caused by not eating. It may also be dizziness caused by lack of nutrition due to lack of blood supply to the brain, brain ischemia and oxygen deprivation, which occurs after not eating for a day. Do not eat too much suddenly, so as not to cause bloating and stomach discomfort, you can first drink brown sugar water, eat millet porridge has a nourishing effect on the stomach and more nutritious, easy to digest food. If you have food in your stomach and no uncomfortable symptoms then gradually resume normal diet, if the dizziness is caused by hunger, there is no organic disease. Symptoms can be significantly relieved after 1-2 hours of eating. In the future, we should pay attention to maintaining a regular diet and increasing the intake of nutritious food to avoid excessive hunger affecting our health.