Effects of Coffee Roasting on Blood Sugar Regulation in Healthy Humans a “Take Out” Study Design.

This study is a collaboration with investigators from the Department of Food, Bioprocessing, and Nutrition Sciences at NC State University. To be eligible for this investigation you need to be a student, staff, or faculty at Elon University and be healthy (Have a BMI (Body mass index) less than 29 kg/m2, Have no pre-existing health conditions), with ages between 18 and 64 years. Habitual coffee consumers and non-coffee consumers can participate. Participation in this investigation is voluntary and does not impact your status within the University.

For more information about this study contact Stephen Bailey, PT. PhD (baileys@elon.edu).

What to Expect

If you agree to take part in this study, you will be asked to:

  1. Complete a Pre-screening online questionnaire that will provide us with some basic information about your health, diabetes history, and coffee and non-coffee caffeine-containing foods, beverages, or supplements. This questionnaire will be used to determine your eligibility. It will take you approximately 10 minutes to complete this questionnaire.
  2. If you are eligible for the study you can sign a virtual consent form.
  3. Picking up a “take out” kit containing coffee and all other supplies for the study.
  4. You will invite to attend a virtual information meeting via Zoom or Google meet where you will learn and instructed about the details of the project and the treatments this included to complete a (virtual) physical screening, including weight, height, waist, and hip circumference, as well as a fasting blood glucose measurement.
  5. Starting six treatment sessions. Each one of these sessions will last about four hours one day in the morning in a fasted state (after not consuming any food for 8-12-hours) and you will have six weeks to complete all sessions. At each session: You will take a fasting blood glucose measurement by finger pricks and read with a glucose meter, then, drink an 8 oz coffee beverage, and consume either a standard breakfast (milk and cornflakes) or a 50 g glucose beverage, then, take nine blood glucose readings between 15 to 240 minutes after treatments, and upload your blood glucose data. (10 blood glucose samples total/4 hours). Between sample time points, you may do schoolwork or other activities, as long as you do not miss study time points and so long as your activities do not involve significant exercise and any food. After each treatment, you will be Uploading blood glucose data to our secure server

We will be available via e-mail or Zoom to provide remote assistance if you have any further questions after starting the study. Compensation of $100 will be provided for individuals who complete all the study activities over the course of 6 sessions.