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 ...

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

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

A person should only fast before a blood test if their doctor or healthcare professional specifically instructs them to do so. Not all blood tests require fasting. If a doctor or healthcare ...

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 ...

Making early changes to your lifestyle or taking medication can help manage blood sugar levels effectively, reducing your risk of long-term health issues. Your blood sugar and A1C levels reflect how ...