Investigating the eating habits of young adults

Influence of Ultra-processed Foods on Reward Processing and Energy Intake

Not applicable Interventional Virginia Polytechnic Institute and State University · NCT05550818

This study tests how eating ultra-processed foods affects the eating habits and brain function of young adults aged 18-25.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment32 (estimated)
Ages18 Years to 25 Years
SexAll
SponsorVirginia Polytechnic Institute and State University Academic / other
Locations2 sites (Blacksburg, Virginia and 1 other locations)
Trial IDNCT05550818 on ClinicalTrials.gov

What this trial studies

This research aims to understand how ultra-processed foods affect eating behaviors and brain function in young adults aged 18-25. Participants will follow two different diets: one high in ultra-processed foods and another emphasizing minimally processed foods, over two 14-day periods. The study will measure changes in energy intake, brain responses to food, and executive function. By exploring these factors, the research seeks to establish a proof-of-concept regarding the impact of diet on health outcomes in this age group.

Who should consider this trial

Good fit: Ideal candidates for this study are young adults aged 18-25 who are weight stable and willing to adhere to the dietary protocols.

Not a fit: Patients with a BMI over 30 or those with significant health issues such as chronic diseases or eating disorders may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved dietary recommendations and interventions for young adults to promote healthier eating habits and prevent obesity.

How similar studies have performed: While there is evidence from pre-clinical studies on the effects of ultra-processed diets, this specific approach in humans is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age 18-25 years
* Weight stable (+5 lbs) for previous 6 months
* No plans to gain/lose weight or change physical activity level
* Willing to pick up food daily and consume foods provided for two 14-day periods
* Verbal and written informed consent
* Unrestrained eater (TFEQ cognitive restraint score \<11)
* No reported history of eating disorders
* Sedentary to recreationally active
* ADHD medications if same med \>3 months at time of study

Exclusion Criteria:

* BMI \>30 kg/m2
* Endocrine disorders or other major chronic disease (e.g., type 2 diabetes, hypothyroidism, hypertension)
* Pregnant or plans to become pregnant
* Food allergies or aversions
* Claustrophobia
* History of head injury with loss of consciousness for more than 10 minutes
* Contraindications to MRI: individuals with pacemaker, aneurysm clips, neurostimulators, cochlear implants, metal in eyes, steel worker, or other implants.

Where this trial is running

Blacksburg, Virginia and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Eating BehaviorEating HabitUltra-processed foodMinimally-processed foodExecutive FunctioningEating HabitsReward SensitivityBrain Activity
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.