Raspberry Study

Study Type


Study Purpose

Red raspberries are a good source of proven health-enhancing elements such as tannins, flavonoids, potassium, vitamin C, and vitamin K1. Compared to other berries commonly consumed in the U.S., the health benefits of red raspberries for type 2 diabetes have never been explored.

This study will investigate 3 areas of interest involving red raspberries:

  • the effect of whole red raspberries on insulin resistance
  • the potential for prevention of destruction of pancreatic cells, and
  • the impact on inflammation in type 2 diabetic patients

About the Study

The Raspberry research study will take place over a period of 1 ½ years. Your expected time in this study will be 2 weeks after screening is complete. This study is being done in partnership with the School of Nutrition and Food Science at Louisiana State University and the National Processed Raspberry Council. All visits will take place in the outpatient and inpatient clinics of Pennington Biomedical Research Center.

Study Design

Number of visits:

  • 1 screening visit
  • 1 baseline visit
  • 3 clinic visits (to pick up raspberry smoothies)
  • 1 end of study visit

Study procedures:

  • Vital signs (height, weight, blood pressure, pulse)
  • Finger prick to check blood sugar
  • Oral Glucose Tolerance Test (OGTT)
Eligible participants will drink one raspberry smoothie daily for 2 weeks. All study procedures will be provided at no cost to participants.

Study Qualifications

  • Age: 18-70 years old
  • You have Type 2 diabetes that is controlled by diet only (no medications).
  • You are otherwise healthy and not pregnant or planning to become pregnant during the study.

Study Duration

2 weeks


Earn up to $100 for participation.

Study Contact

If you are interested in volunteering for the RASPBERRY study, click here to screen online, call 225-763-3000 or email clinicaltrials@pbrc.edu.

If you think you may be eligible, please click the button below to screen online.


Please do not fill out this questionnaire for anyone other than yourself unless you are their legal guardian.
If you know someone who may be interested please direct them to the site or have them call us directly at 225-763-3000.


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