Impact of Plant Diet for Diabetes Prevention

Purpose

The primary purpose of this study is to determine the sex-specific metabolic and molecular response, among adults with prediabetes, when moving from a Western Diet to plant-based diet.

Condition

  • Prediabetes (Insulin Resistance, Impaired Glucose Tolerance)

Eligibility

Eligible Ages
Between 30 Years and 55 Years
Eligible Genders
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • Body mass index greater than or equal to 27 - High waist circumference (women greater than or equal to 35"Íž men greater than or equal to 40") - Prediabetes (based on fasting glucose 100-125 mg/dL, HbA1c 5.7-6.4, or 2-hr post-oral glucose tolerance test glucose screen between 140-199mg/dL) - Physical activity below national guidelines - Aged 30-55 (premenopausal for women) - Following a Western diet

Exclusion Criteria

  • Diabetes diagnosis - Take medications that may affect insulin sensitivity - More than 5% weight change within 6 months of screening - History of bariatric surgery - Report any dietary supplement, medication, or medical condition known to significantly affect weight or metabolism - Take hormone replacement therapy - Consume 3 or more servings of combined fruit and vegetables daily and/or 3 or more servings of whole grains daily - Any food allergy more severe than grade 1 on the CoFAR Grading Scale for Systemic Allergic Reactions, Version 3.0 or allergy to lidocaine

Study Design

Phase
N/A
Study Type
Interventional
Allocation
N/A
Intervention Model
Single Group Assignment
Primary Purpose
Prevention
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Other
Plant-based diet 		4 weeks of plant-based meals and snacks.
  • Other: Plant-based diet
    Participants will follow one week Western diet run-in where participants will consume a diet high in processed foods (e.g., fast food, chips, soda). Following the run-in phase, participants will consume plant-based meals and snacks for 5 weeks, which will be delivered directly to their homes or provided directly by the study team. Participants will be permitted to consume one "cheat" meal of up to 500kcal per week, which will all be reported to the study team.

Recruiting Locations

UK Center for Clinical and Translational Science and nearby locations

University of Kentucky CCTS
Lexington, Kentucky 40536
Contact:
Jean Fry, Assistant Professor, PhD
859-562-2778
jean.fry@uky.edu

More Details

NCT ID
NCT06571279
Status
Recruiting
Sponsor
Jean L. Fry

Study Contact

Jean L Fry, PhD
859-562-2778
jean.fry@uky.edu

Detailed Description

Plant-based diets that are abundant in myoinsitol and D-chiro inositol (MI and DCI) increase insulin sensitivity by promotion of insulin signaling lowering serum insulin and improving insulin resistance. The Western diet contributes to chronic metabolic inflammation often leading to the development of metabolic diseases. There is known metabolic improvement among men compared to women when following a plant-based diet or intensive lifestyle modifications. Through this study we look to identify the pathways in which plant-based diet impact skeletal muscle inositol metabolites among sexes (men vs. women) and improve insulin sensitivity.