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What is a healthy glucose level?

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Quick Answer

A healthy fasting blood glucose is less than 100 milligrams per deciliter, notes WebMD. If the glucose level is checked within two hours after eating, it should be less than 140 milligrams per deciliter.

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Full Answer

Glucose, also called blood sugar, serves as a source of energy in the human body, explains WebMD. When the amount of glucose in the bloodstream increases, the pancreas releases insulin to help the glucose move from the bloodstream into the cells. Consistently elevated glucose levels increase the risk for kidney damage, blindness and nerve damage. The reference range for the glucose blood test serves as a basic guideline. What is healthy for one person may not be healthy for another, so anyone concerned about his glucose level should consult a doctor.

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