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 ...

How often should you test your glucose and A1C? How do food, sleep and exercise affect blood sugar? Here’s what to know. Credit...Illustration by Andrei Cojocaru; Photos by Getty Supported by By Nina ...

A gestational diabetes test checks blood sugar, or glucose, levels during pregnancy. Before the test, people should avoid consuming food and drinks that are high in sugar and simple carbohydrates, as ...

Greek yogurt with honey can raise your blood sugar, but to a lesser extent than sweetened yogurt or honey alone.

Not all blood tests require you to fast, but you should always follow your doctor’s instructions if you do need to fast for a specific exam. Blood tests are common procedures that healthcare providers ...