What are normal fasting and after-meal blood sugar levels for non-diabetics?


Quick Answer

A normal fasting blood sugar ranges from 70 to 100 milligrams per deciliter for a non-diabetic, according to MedlinePlus. Normal blood sugar after a meal varies based on the person's age and how long it has been since the meal.

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Full Answer

The two-hour postprandial glucose test checks a person's blood sugar level two hours after eating, states the University of Rochester Medical Center. A postprandial blood sugar of less than 140 milligrams per deciliter is normal for infants, children, teens and adults under the age of 50. In an adult between 50 and 60 years of age, postprandial blood sugar should be less than 150 milligrams per deciliter. After the age of 60, a postprandial blood sugar of less than 160 milligrams per deciliter is considered normal.

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