Actively Recruiting
Examining the Independent and Combined Effects of Dietary Fiber and Time Restricted Eating on Indicators of Cancer Risk: the Fiber and Time Restricted Eating (F.I.T.) Study
Led by University of Oklahoma · Updated on 2026-03-13
90
Participants Needed
1
Research Sites
N/A
Total Duration
On this page
AI-Summary
What this Trial Is About
Researchers are evaluating the independent and combined effects of two dietary interventions—dietary fiber intake and time restricted eating—on indicators related to cancer risk. This study aims to understand how these behaviors may influence risk factors for cancer prevention and overall diet habits. The trial is sponsored by the University of Oklahoma and involves adult participants with specific health and diet profiles. Participants will be assigned to one of three groups: dietary fiber education with counseling, a 10-hour time restricted eating schedule, or a combination of both interventions. The study includes behavioral approaches such as group education and motivational interviewing to support diet changes. The interventions will be followed by observation periods to assess short- and longer-term effects. Throughout the study, participants' dietary fiber intake, body weight, blood pressure, and various blood markers related to inflammation, oxidative stress, and insulin resistance will be measured at baseline, after approximately 3 months of intervention, and again at 12 months post-intervention. Daily monitoring of affect, sleep, and physical activity will also be collected for three months using ecological momentary assessment via a compatible cell phone app. The total participation involves baseline assessment, intervention, and follow-up periods to track changes over time.
CONDITIONS
Brief Title
Dietary Fiber and Time Restricted Eating
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Age 18 years or older
- Body mass index of 30 kg/m2 or higher
- Dietary fiber intake of 15 grams or less per day
- Possession of a compatible cell phone to use the ecological momentary assessment app
You will not qualify if you...
- Diagnosis that prevents fiber intake such as inflammatory bowel disease
- Food allergies or intolerances limiting participation in the dietary interventions
- Positive screen on the SCOFF eating disorder questionnaire
- Current use of GLP-1 receptor agonists
- Currently pregnant, breastfeeding, or planning to become pregnant
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Approximately 3 months
Participants engage in behavioral interventions including 10-hour Time Restricted Eating, group education about dietary fiber, and counseling with motivational interviewing to promote diet changes.
Daily self-reporting using an ecological momentary assessment app and periodic group education and counseling sessions
Duration - Approximately 9 months after intervention
Participants are observed to assess the sustained effects of the interventions on dietary fiber intake, body mass, blood pressure, and blood-based measures.
Assessments at approximately 12 months post-enrollment
Trial Site Locations
Total: 1 location
1
University of Oklahoma Health Sciences
Columbus, Ohio, United States, 43230
Actively Recruiting
Research Team
A
Ashlea Braun, PhD
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
FACTORIAL
Primary Purpose
PREVENTION
Number of Arms
3
Similar Trials
Frequently Asked Questions
Have more questions? Get in touch with our team for quick support
Not the Right Trial for You?
Explore thousands of other clinical trials that might be a better match.
Sign up to get personalized trial recommendations delivered to your inbox.
Already have an account? Log in here