A member asked:

I have a blood draw in the morning, i start fasting at midnight, can i drink black coffee? this is a new dr. for me and he wants complete blood work.

2 doctors weighed in across 2 answers

Yes, : Yes, black coffee or black tea are ok.

Answered 12/25/2020

5.3k views

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No: Caffeine can affect glucose and lipids, the two general reasons for testing blood in fasting state.

Answered 1/14/2021

230 views

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