Q:

What are normal ranges for blood sugar in adults?

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Quick Answer

The normal fasting blood sugar range is less than or equal to 100 milligrams per deciliter, and the normal blood glucose range two hours after eating is less than 150 milligrams per deciliter for individuals under the age of 50, according to WebMD. The reference ranges are only a guide.

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What are normal ranges for blood sugar in adults?
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Full Answer

A normal range for an individual may vary based on a variety of factors including the person's general health, notes WebMD. A doctor is able to determine what specific blood glucose range is healthy for an individual.

When determining blood glucose levels, the glucose level will vary based on when the person previously ate. According to WebMD, fasting blood sugar is taken when a person has not eaten for at least eight hours while two-hour postprandial measures blood glucose two hours after beginning a meal.

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