what causes a nauseous feeling after eating
After consuming sugary foods or drinks, a person might feel nauseous due to a spike in blood glucose levels. High blood glucose is more technically referred to as hyperglycemia, according to the... After consuming sugary foods or drinks, a person might feel nauseous due to a spike in blood glucose levels. High blood glucose is more technically referred to as hyperglycemia, according to the American Diabetes Association. Many believe a feeling of nausea after eating sugar is a result of overindulging. However, there is a more detailed, biological explanation for the uneasiness that follows sugar consumption. Heavy sugar consumption can increase levels of toxic acids, such as ketones, throughout the body, notes Mayo Clinic.