2 doctors weighed in:

Can you please discuss the concentration range of glucose in healthy people?

2 doctors weighed in
Dr. David Sneid
Internal Medicine - Endocrinology
1 doctor agrees

In brief: 65-105

65-105 when drawn out of a vein while fasting.
Various authorities have different "normal" levels. There are, however, no exact cut-offs, it's all a continuium. Finger sticks are not accurate enough for diagnosis. Two hour post meal should be less than 130-140, and any glucose >200 at any time suggests diabetes. An a1c >6% is also suggestive and needs further evaluation. See diabetes.Org for info.

In brief: 65-105

65-105 when drawn out of a vein while fasting.
Various authorities have different "normal" levels. There are, however, no exact cut-offs, it's all a continuium. Finger sticks are not accurate enough for diagnosis. Two hour post meal should be less than 130-140, and any glucose >200 at any time suggests diabetes. An a1c >6% is also suggestive and needs further evaluation. See diabetes.Org for info.
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