I have to be on a High Protein diet for a test that I need to have done, specifically a PET CatScan. I'm not sure if this can include protein shakes. Would it be feasible to consume protein shakes, just a few, in place of foods?

Your question is a good one. Many of my patients get PET scans and I talk to them frequently about the diet that they need to follow ~24 hours before the scan. Patients should follow a low carbohydrate diet prior to their scan. They should not drink (except water) or chew gum for 6 hours prior to the scan and patients should drink extra fluids throughout the day after the scan to help rinse the contrast dye from their system.

Following a low carbohydrate diet prior to your PET scan will allow the images from your scan to appear clearer to the members of your medical team. Foods that are allowed on this diet include:

Protein: non breaded chicken, beef, turkey, fish, pork, lamb, ham, hot dogs, lunch meats, fish, shellfish, crab, peanut butter (1 or 2 servings total), most nuts and seeds and eggs.
Dairy: Low fat cottage cheese, cheese, one serving of light yogurt (non-sweetened), sour cream, butter, half and half.
Vegetables: green beans, asparagus, broccoli, cabbage, cauliflower, celery, cucumber, lettuce, mushrooms, radishes, spinach, and zucchini.
Beverages: diet soda, black coffee, tea, water, sugar free crystal light.
Foods to avoid: potatoes, bread, rice, pasta, sauces/gravies, soybeans, syrup/jam, rice cakes, chips, pretzels, corn, carrots, legumes, squash, ketchup.

I hope this helps!! Good luck.

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