Can i have coffee before fasting blood work?

Fasting for Labs. Yes. There are no sugar or fat calories in black coffee. read more

The investigating laboratory may instruct you not to eat after dinner the night before and to hold off on your morning breakfast, coffee or tea until after the blood draw. Fasting Requirements Fasting is defined as eating and drinking nothing but water. read more

You must fast for 12 hours (overnight) before your blood test, but you have a real dependence on coffee or caffeine. You need that cup of caffeinated energy before you even walk out the door. Otherwise, grogginess, a headache and a general feeling of malaise may set in. read more