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This research study will compare participants consuming a high-fat meal supplemented with raspberry to a high-fat control meal to determine the effects of dietary raspberry intake on cognitive and psychomotor function in older/overweight adults. Specifically, we are looking for individuals who have a BMI between 27 and 35 kg/m2 but are otherwise healthy.

Target Population
Men and women, 55 to 70 years of age

Major Exclusions
  Smoking or use of nicotine replacement products within the last 2 years
  BMI<27 or BMI>35 kg/m2
  Vegetarian or vegan
  Raspberry allergy
  Liver or kidney disease
  Neurological disorders

Length of Study
1 month

Number of Visits
1 screening and 3 study visits


Can I work?
Yes, but not on the mornings of the screening visit and study visit 1. However, on visits 2 and 3, you will not be able to work because you will be at the center up to 11 hours for measurements, blood samples and memory tests.

Study Diet
Abstain from consuming berry fruits and foods/beverages containing berries but otherwise maintain your usual diet.  For two test visits you will consume a high-fat breakfast with supplemented raspberry or a high-fat control breakfast.

$25 for screening visit, and up to $385 if you qualify and complete the study