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A 38-year-old member asked:

Will drinking decaf black coffee before fasting blood test alter the results?

1 doctor answer3 doctors weighed in
Dr. Terri Washington
Endocrinology 18 years experience
Yes: Could depending on the test, if is blood sugar or chol then coffee could make an impact.
Created for people with ongoing healthcare needs but benefits everyone.

Similar questions

A 65-year-old female asked:

Is it ok to drink black coffee when your fasting for blood test?

1 doctor answer1 doctor weighed in
Dr. Robert Killian
General Practice 30 years experience
Fasting for Labs: Yes. There are no sugar or fat calories in black coffee.
Created for people with ongoing healthcare needs but benefits everyone.

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Last updated Jan 22, 2019
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