The causes of dizziness and discomfort after meals are as follows: 1. The blood flow in the stomach will increase after the patient has eaten, and the blood flow in the brain will be relatively reduced, and the patient may experience dizziness and discomfort due to cerebral ischemia. When patients become dizzy, they need to look for other causes of dizziness, such as cardiovascular disease, ophthalmologic lesions, otogenic lesions, endocrine system diseases, blood system diseases, etc. These diseases may lead to dizziness and discomfort. 2. Patients who become dizzy after meals need to be actively investigated for heart disease, because Many heart diseases tend to develop after a meal.