What foods should I avoid before a cholesterol test? Cardiologist reveals what to eat the night before, whether you need to fast and which foods impact results.

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 ...

When you need a blood test that requires fasting, youll want to be aware of things that could cause faulty test results. Drinking diet soda with artificial sweetener before a fasting blood test might ...