Mediterranean Diet and Blood Sugar Study

Sponsor
Penn State University
Study ID
NCT07229781
Status
Not Yet Recruiting

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Conditions

  • Prediabetes

Eligibility Criteria

Sex
ALL
Age
25 Years - 65 Years
Healthy Volunteers
Not accepted

Interventions

  • Mediterranean-style diet with potatoes — OTHER
    The diet will contain 1 medium potato/day/2000 kcal
  • Traditional-style Mediterranean diet — OTHER
    Traditional-style Mediterranean diet higher in grains

Study Details

The purpose of this research study is to determine if a healthy Mediterranean diet containing one medium potato/day has equivalent or non-different effects on risk factors for type 2 diabetes and heart disease compared to a healthy Mediterranean diet without potatoes in adults with prediabetes. Participants will be randomly assigned to one of the test diets and be asked to consume this diet for 12 weeks (84 days). Testing will be conducted at the beginning and end of the study.

Key Dates

First listed
Nov 17, 2025
Start date
Aug 1, 2026
Status verified
Jul 2026
Primary completion
Apr 30, 2028
Completion
Apr 30, 2028

Study Design

Enrollment
74 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION

Arms

  • Experimental: Mediterranean-style diet with potato (MED-P)
    Mediterranean-style diet that includes 1 medium potato/day/2000 kcal replacing some grains
  • Active Comparator: Traditional-style Mediterranean dietary pattern (MED)
    A traditional-style Mediterranean diet that does not contain potatoes (potatoes are not a defining feature of this diet) and is higher in grains.

Primary Outcome Measure

Change in HbA1c [ Time Frame: 12-weeks ]

Central Contacts

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