High-fiber mHealth program for young adults with prediabetes

Preliminary Examination of an Innovative mHealth-Based Dietary Fiber Intervention to Improve Outcomes in Young Adults With Prediabetes: A Feasibility Study

This three-month phone-based program tests whether weekly home-delivered high-fiber foods, brief education, and continuous glucose monitor feedback can improve blood sugar control in young adults (18–39) with prediabetes.

Quick facts

• Phase: NA
• Study type: Interventional
• Enrollment: 80 (estimated)
• Ages: 18 Years to 39 Years
• Sex: All
• Sponsor: University of Oklahoma (other)
• Locations: 1 site (Tulsa, Oklahoma)
• Trial ID: NCT07491653 on ClinicalTrials.gov

What this trial studies

This single-arm feasibility trial enrolls adults aged 18–39 with prediabetes and collects baseline venous blood to measure insulin resistance. Participants complete a three-month fully mHealth intervention that provides high-fiber nutrition education, weekly home deliveries of high-fiber foods, and periodic continuous glucose monitor (CGM) use for biofeedback. After the intervention participants return for repeat blood testing of insulin resistance and then complete a one-month observation period with smartphone-based ecological momentary assessments. Outcomes focus on feasibility, changes in glycemic markers and insulin resistance, and real-world adherence to higher-fiber eating.

Who should consider this trial

Good fit: Ideal candidates are English-speaking young adults (18–39) living near the Tulsa metro with prediabetes by HbA1c, who can use a compatible smartphone and are not pregnant, breastfeeding, on GLP-1 agonists, or have eating disorders or disqualifying food allergies.

Not a fit: People with established diabetes, those pregnant or breastfeeding, individuals on GLP-1 receptor agonists, those with serious eating disorders or food restrictions, or anyone unable to use a smartphone or attend Tulsa visits are unlikely to benefit from this intervention.

Why it matters

Potential benefit: If successful, the approach could help lower blood sugar and improve insulin resistance through practical dietary changes delivered and reinforced via smartphones and CGM feedback.

How similar studies have performed: Separate research supports that higher dietary fiber and mHealth or CGM-based feedback can improve glycemic control, but combining home food delivery with CGM-based biofeedback in young adults with prediabetes is relatively novel.

Eligibility criteria

Inclusion Criteria:

* Pre-diabetes based on HbA1c
* Young adult, aged 18-39 years
* Reside near Tulsa metro area
* Ability to access/use a compatible smartphone
* Proficient in English

Exclusion Criteria:

* Suspected eating disorder
* Current glucagon-like peptide-1 receptor agonist use
* Food allergies or intolerances
* Currently pregnant or breastfeeding

Where this trial is running

Tulsa, Oklahoma

• University of Oklahoma Health Campus — Tulsa, Oklahoma, United States (RECRUITING)

Study contacts

• Principal investigator: Ashlea Braun, PhD — University of Oklahoma
• Study coordinator: Ashlea Braun, PhD

Conditions: Prediabetes, Diet, Young adults, Fiber, Diabetes