Do you fast for hemoglobin A1C?
Asked by: SugarWatcher99
SponsoredAmazon's Choice
NatureBell Xylitol Sweetener, 5lbs | Natural Birch Crystal Source – 1:1 Sugar Substitute
Sweet flavor with no erythritol, low calorie and glycemic impact, sugar free, no aftertaste, and non-GMO—ideal for mindful sugar swaps without compromising taste.
$29.95Prime eligible
Pricing and availability are based on Amazon listings and may change.
Community Answer
Answered by Dr. Emily Carter, MD
No, fasting is not required for a hemoglobin A1C test. The A1C test measures your average blood sugar levels over the past 2-3 months, so it does not depend on whether you have eaten recently. However, your doctor may order additional tests (e.g., cholesterol or fasting glucose) that require fasting, so always confirm with your healthcare provider before the test.