What Foods Can I Eat Before a Pet Scan

What Foods Can I Eat Before a PET Scan?

A PET scan (positron emission tomography) is a medical imaging technique that helps doctors visualize and diagnose various diseases, including cancer, by examining the metabolic activity of tissues. Before undergoing a PET scan, it is essential to follow certain dietary guidelines to ensure accurate results. Here are some foods you can eat before a PET scan:

1. Plain water: Staying hydrated is crucial, so drink plenty of plain water before the scan.

2. Plain coffee or tea: You can have a cup of plain coffee or tea without any sugar or cream.

3. Plain toast or crackers: Opt for plain toast or crackers without any spreads or toppings.

4. Fresh fruits: Non-citrus fruits like apples or bananas are a good choice as they provide energy without interfering with the scan.

5. Plain yogurt: Enjoy a small portion of plain yogurt without any added fruits, flavors, or sweeteners.

6. Plain chicken or turkey: If you require a more substantial meal, you can have a small portion of plain, skinless chicken or turkey.

7. Steamed vegetables: Choose non-starchy vegetables like broccoli, carrots, or green beans, lightly steamed without any added seasonings.


1. Can I eat dairy products before a PET scan?
It is best to avoid dairy products, except for plain yogurt, as they can interfere with the accuracy of the scan.

2. Are there any specific foods I should avoid before a PET scan?
Yes, avoid sugary foods, alcoholic beverages, and high-fat meals, as they can affect the results.

3. Is fasting required before a PET scan?
Fasting is generally not required for a PET scan, but some specific instructions may vary depending on your doctor’s recommendation.

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4. Can I drink alcohol before a PET scan?
No, it is advised to avoid alcohol before the scan as it can interfere with the accuracy of the results.

5. Can I eat before a PET scan if I am diabetic?
Diabetic patients may require specific instructions from their doctor regarding food and insulin intake before a PET scan.

6. Can I have a protein shake before a PET scan?
It is recommended to avoid protein shakes before the scan as they may contain additives or sweeteners that can interfere with the results.

7. Can I have sugar-free gum or mints before a PET scan?
It is best to avoid gum or mints, even if they are sugar-free, as they may contain substances that can affect the scan.