For accurate results, you may need to fast for certain tests. This requires you to avoid certain foods and drinks. Learn more ...

You can consume nothing but water for at least 8 hours before a fasting glucose test. You may also need to follow a low carb diet and avoid exercise for some time before. A fasting glucose test ...

Drinking diet soda before a fasting blood test may alter results. Stick to water or unsweetened drinks as advised by your ...

DEAR DOCTOR K: I heard that fasting will no longer be required before a cholesterol test. Will the results still be as accurate? DEAR READER: To answer your question, I need to first describe what a ...

It depends on the type of coffee you drank and the type of blood test you have scheduled. Black coffee typically does not affect tests that measure red blood cell count, liver function, or kidney ...

In a randomized crossover trial of 31 women with overweight, early and late time-restricted eating (TRE) produced no ...

Blood sugar checks are essential for the diagnosis and treatment of every form of diabetes. “Glucose monitoring is critical for preventing short-term and long-term complications of diabetes,” says ...