Why are people required to fast before a blood test?

Answered by 1 Apollo Doctors

Dr Kamran Mohammed

General Practitioner

MBBS
FIDM
5+ Yrs

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Food nutrients can interfere with the test especially in the case of fasting blood glucose hence it is advised to remain empty stomach before giving the test.

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Answered 24/07/2025

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Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.