Nutrition Core Research Participant Frequently Asked Questions (FAQs)

  • Can I have any additional beverages? 
    You may drink as much plain tap water as you like or carbonated flavored unsweetened seltzers such as lemon, lime, or cranberry, each day.
  • Can I drink alcoholic beverages including beer, wine, and bottled alcohol? 
     Unless specifically approved by your study physician.
  • Do I have to finish all of my food?  
    You must finish all of the food, beverages and nutritional supplements (for example, chewable Tums) that may be in your diet.
  • If Tums are included in my diet do I have to take them? 
    Yes! Calcium is a controlled nutrient for the study and we may provide Tums for a source of calcium.  Tums are not provided for an upset stomach so be sure to finish them!
  • What is KCL? 
    Liquid potassium that may be added to your juice to reach the required potassium for your diet. 
  • Can I save my food from day to day? 
    No! All of your food for a particular day must be consumed by the end of that day.
  • Can I make any substitutions/additions to the diet? 
    No! Changes to your diet will change your study results.
  • Can I add any spices to my food? 
    Yes, but NO salt! Allowed spices: oregano, Italian seasoning, basil, curry, red pepper, onion powder.
  • Can I share my food with anyone? 
    No! The food is specifically and only for you.
  • Can I use baking soda/whitening toothpaste and mouthwash? 
    No! Baking soda/whitening toothpaste & mouthwash contains too much sodium.
  • Can I take multivitamins/minerals or other supplements? 
    Unless specifically approved by your study physician.
  • Please visit RSVP for Health for more information about ongoing studies