2647, 2747, 2847: Glycemic Index (Studies 4,5 and 6) Variability Among Individuals

Purpose
The purpose of the study is to determine whether people have different blood sugar responses to the same food.

Target Population
Women, Aged 50 to 85 years old

Major Exclusions
• BMI <25 or >35 kg/m2
• Untreated hypertension
• Irritable bowel syndrome
• Smoking within the past 6 months
• Diabetes, kidney or liver disease
• Pregnancy or breastfeeding
• Any known chronic condition(s)
• Cholesterol lowering medications
• Weight gain or loss of more than 15 lbs within 6 months prior to enrollment

Length of Study
3 to 6 weeks

# of visits
1 screening visit
5 visits for study 4
4 visits for study 5
6 visits for study 6

Residency
6 to 7 hour visits for studies 4 and 5; 10 hour visits for study 6 (no overnight stays)

Study diet
None

Can I work?
Not on study days

Stipend
Screening visit: $15
Study 4: could earn up to a total of $490 if you qualify and complete the study.
Study 5: could earn up to a total of $380 if you qualify and complete the study.
Study 6: could earn up to a total of $780 if you qualify and complete the study.

NOTES:
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.
Residency

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.
Payment

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