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This is a nutritional study examining the effect of evening peanut consumption on blood sugar levels, gut health and other health outcomes related to cardiovascular disease and diabetes.

Procedures and Compensation:

  • Two-six week treatment periods with a minimum 4 week break between the test periods.
  • We will provide you with one oz. of peanuts or a calorie matched snack to consume each day in the evening (i.e. after dinner and before sleeping).
  • Measurements of blood markers (sugar, insulin, cholesterol), gut health, blood pressure, and vascular health, at the start and end of each treatment period.
  • $400 compensation.
  • Lab results provided at no cost

You may qualify if you meet the following criteria:

  • 18-75 years old
  • BMI 20-40kg/m2
  • Non-smoker
  • Not taking cholesterol, glucose, or blood pressure lowering medication
  • Free of cardiovascular disease, stroke, kidney or blood vessel disease


Please call 1-866 778 3438 or email, mention the Peanut study, and leave your name and number.

Return to the Study Page

This research study is being conducted by Dr. Penny Kris-Etherton and Dr. Kristina Petersen from the Department of Nutritional Sciences and has been approved by the Institutional Review Board of the Pennsylvania State University.