University of Missouri-Columbia
This study is investigating the benefits of whole freeze-dried grape powder consumption on the immune-gut axis in adults with obesity.
The study is a 12-wk randomized, controlled, crossover trial. Participants will be randomized to one of two intervention sequences, either consuming 48g/day of whole freeze-dried grape powder followed by an isocaloric placebo powder or consuming the placebo powder followed by the whole freeze-dried grape powder. Active intervention phases will be 4 weeks in duration followed by a 4-week washout period between treatments.
Inclusion Criteria: * Age: 18-60 years * Obesity with BMI of 30-45 kg/m2 * Willingness to consume study foods * Consistent diet and activity patterns for 4 weeks * Weight stable (\<5kg change over last 3 months) * Non-smoker \> 1 year or more * Not currently consuming an extremely healthy diet Exclusion Criteria: * Study food allergies * Regular consumption of grapes or grape-derived products * Gastrointestinal disease and/or bariatric surgery * Uncontrolled hypertension and blood pressure \>180/110 * Diabetes * Illicit drug use * History of alcohol or drug abuse * Recent use of medications…
48 g/day oral consumption during the 4-week active period.
Isocaloric placebo matched to grape powder; oral consumption during the 4-week active period.
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