The symptoms of dizziness after eating too much sugar may be related to elevated blood sugar, especially in patients with diabetes. Eating foods with a high sugar content may cause a significant increase in blood sugar, which may lead to dizziness, thirst, nausea and other uncomfortable symptoms, so blood sugar and glucose tolerance tests can be performed to determine this. If your blood sugar is elevated, you should strictly limit your total calorie intake and refrain from eating foods with excessive sugar content, and you can take metformin and bethanech for treatment. If blood sugar increases significantly, you can also inject insulin to lower blood sugar as soon as possible. Dizziness after eating too much sugar, if you usually also have headaches, numbness of the limbs and other symptoms, there may also be a relationship with cerebrovascular disease, hypertension, if the examination has a cerebral infarction, cerebral thrombosis, increased blood pressure, you can take blood Cetron, ginkgo biloba, nifedipine extended-release tablets and other drugs for treatment.