2735: Carbohydrate Study

This research study will determine how diets containing three different types of carbohydrate: simple, refined and unrefined, affect cardiovascular disease risk factors.

Target Population
Men and women ages 50-85 years

Major Exclusions
<50 years old
BMI < 20 and > 35 kg/m2
Alcohol intake greater than 7 drinks per week
Heart disease
High blood pressure

Length of Study
15 weeks (excluding 2-4 week washout period in-between each diet phase)


Study diet
All food and beverages will be provided during the 15-week period.

Potential volunteers will receive $25.00 for completing the pre-screening visit, and $25.00 for completing the screening visit to compensate for travel and parking costs. Additionally, volunteers will receive $300 for each of the 3 diet phases, for a total of $950 for qualifying for and completing the entire study.

Length of study

Total length of the study including resident stays and nonresident visits.
This does not mean you will be testing the entire time.

The length of time volunteers are required to stay overnight at the HNRCA. Residents have their own private room, bathroom, television, VCR, and phone during their stay.

The amount of reimbursement for travel and inconvenience.
Number of visits

Total number of nonresident visits.
Study diet

Indicates meals which will be provided by the HNRCA
Can I work?

Indicates if you will be able to work and if so, when.

For more information about this study, please call Volunteer Services at 1-800-738-7555 or complete our Study Inquiry Form.

We appreciate your interest in our program and we hope to work with you in the future.

Thank you,
The Recruitment Office
Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University