Smoothie Program for Achieving and Resilient Kids

Part of paid clinical trials in State College, Pennsylvania.

Sponsor
Penn State University
Study ID
NCT07195474
Status
Not Yet Recruiting

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Conditions

  • Dietary Quality
  • Executive Functions (EF)
  • Microbiome

Eligibility Criteria

Sex
ALL
Age
7 Years - 9 Years
Healthy Volunteers
Accepted

Interventions

  • Yogurt Smoothie (1 per day) — DIETARY_SUPPLEMENT
    Children consume one yogurt smoothie per day for 4 weeks (93 mL and \~70 kcal).
  • Yogurt Smoothie (2 per day) — DIETARY_SUPPLEMENT
    Children consume two yogurt smoothies per day for 4 weeks (186 mL and \~140 kcal).
  • Fruit Juice Control — DIETARY_SUPPLEMENT
    Children consume one fruit juice per day for 4 weeks (\~140 kcal, isocaloric with 2 yogurt smoothie).

Study Details

The proposed study will examine whether eating yogurt every day can improve brain and gut health in children. Prior research suggests that yogurt may support cognitive functions like self-control, but more studies are needed to confirm this. The study will follow 60 children from Central Pennsylvania, ages 8 to 10, who will be randomly assigned to drink either fruit juice (control group) or yogurt smoothies once or twice a day for four weeks. Researchers will compare how different amounts of yogurt affect children's thinking skills (like memory and focus), brain activity, and gut bacteria. These changes will be measured through brain scans, computer-based thinking tasks, surveys, and stool samples. The study will also collect information about children's overall diet. The goal is to find out if yogurt can support healthy brain and gut development and to determine the right amount to include in a child's daily diet. Results will help guide future research on how nutrition supports children's health.

Key Dates

Start date
May 31, 2026
Status verified
May 2026
Primary completion
Sep 30, 2027
Completion
Sep 30, 2028

Study Design

Enrollment
60 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER

Arms

  • Experimental: 1 daily yogurt smoothie
    Children will have the experimental doses of yogurt smoothies (1x daily) for 4 weeks. (93 mL and \~70 kcal)
  • Experimental: 2 daily yogurt smoothies
    Children will have the experimental doses of yogurt smoothies (2x daily) for 4 weeks. (186 mL and \~140 kcal)
  • Active Comparator: daily fruit juice control
    Children will have the fruit juice control (1 juice per day) for 4 weeks. (isocaloric fruit juice \~140 kcal)

Primary Outcome Measure

Cognitive and Brain Responses to Yogurt Smoothie Intake [ Time Frame: Baseline and up to average of 4 weeks ]

Central Contacts

Locations (1)

FacilityCityStateZIPSite coordinators
Metabolic Kitchen and Children's Eating Behavior LabState CollegePennsylvania16802
Kathleen L Keller, Ph.D. (PRINCIPAL_INVESTIGATOR)
Alaina L Pearce, Ph.D (PRINCIPAL_INVESTIGATOR)

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By research site
Metabolic Kitchen and Children's Eating Behavior Lab· State College, PA

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