Why do you get dizzy after eating? Dizziness after eating is mainly due to two reasons: 1. Patients with a history of hypertension may experience an increase in blood pressure after eating. If the increase in blood pressure at this time exceeds the regulation of the brain’s own blood flow, dizziness and drowsiness will occur. The dizziness will be relieved after rest or blood pressure lowering medication is given. 2. Dizziness after eating is related to the redistribution of blood after eating. This is because after a particularly full meal, the food in the stomach needs a lot of blood to be digested. At this time it is easy to cause insufficient blood supply to the brain, appearing dizzy after meals, want to sleep feeling. You can try to control the amount of food you eat when you eat and do not eat too much to reduce dizziness.