3 doctors weighed in:

Do I have to fast for a hba1c blood test?

3 doctors weighed in
Dr. Joseph Roosth
Internal Medicine
1 doctor agrees

In brief: Not really

The aic test generally tells us what has been going on with your sugar over the past 3 months approximately.
One does not really have to fast for it, but it is best done fasting in my opinion, because your doctor will probably want to see a fasting blood sugar at the same time to help manage your diabetes. Often a lipid panel is done at the same time, which requires one to be fasting.

In brief: Not really

The aic test generally tells us what has been going on with your sugar over the past 3 months approximately.
One does not really have to fast for it, but it is best done fasting in my opinion, because your doctor will probably want to see a fasting blood sugar at the same time to help manage your diabetes. Often a lipid panel is done at the same time, which requires one to be fasting.
Dr. Joseph Roosth
Dr. Joseph Roosth
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Dr. Vered Lewy-Weiss
Pediatrics - Endocrinology

In brief: No

For the hba1c test itself ( and nothing else), one doesn't need to fast.

In brief: No

For the hba1c test itself ( and nothing else), one doesn't need to fast.
Dr. Vered Lewy-Weiss
Dr. Vered Lewy-Weiss
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