Hypoglycemia is when your blood sugar level drops below 70 milligrams per deciliter (mg/dL).
You can still have low blood sugar even if you don't have diabetes. Hypoglycemia occurs when your fasting blood sugar is too low. Nondiabetic hypoglycemia refers to the condition in which a person without diabetes experiences low blood glucose (sugar).

Nondiabetic hypoglycemia can happen within a few hours of eating or while fasting, when you haven't eaten. The latter may be related to a more serious health condition.

When it's not caused by a reaction to medications, such as taking too much aspirin, or a condition like cancer, you may be able to manage your symptoms by changing what you eat. If you're concerned about hypoglycemia, it's probably time to make some changes. You can manage nondiabetic hypoglycemia with adjustments to your diet that include eating foods that can help you maintain a blood sugar level within the normal, healthy range.