The Biobehavioral Impact of Diet Quality on Affect and Craving
Public ClinicalTrials.gov record NCT04105712. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The current study experimentally investigates whether reducing highly processed (HP) foods (defined in this study as foods high in added sugars) leads to, psychological and / or behavioral indicators of withdrawal. The following hypotheses are tested: 1. To test the hypothesis that reducing highly processed food intake will result in higher daily reports of physical (e.g. headaches), cognitive (e.g. difficulty concentrating), and affective (e.g., irritability) withdrawal symptoms). 2. To test the hypothesis that reducing highly processed food intake will result in increased negative affect (e.g., irritability, depression) as indicated by and psychological (self - reported distress ratings; daily emotion / mood reports) measures. 3. To test the hypothesis that reducing highly processed food intake will result in increased food craving as indicated by psychological (self - report craving ratings; daily craving report) measures. All activities are completed remotely. Participants complete 4 phone appointments with a trained member of the research team. Daily questionnaires and ecological momentary assessments are completed at home between phone appointments. The initial call signs electronic consent and gets baseline measurements (questionnaires). After the initial call, participants start an active assessment period (pre / post dietary change assessments). Pre-dietary change includes at home questionnaires and ecological momentary assessments while eating a typical diet. It also includes the second phone appointment. Post-dietary change includes at home questionnaires and ecological momentary assessments while consuming 3 days of food portions lower in highly processed foods. Participants will complete a food journal on the remaining 2 days of post - dietary change assessment to report what food they ate. Post - dietary change also includes the third phone appointment. The second and third phone appointments each include computer tasks and questionnaires. The final phone appointment is a debriefing interview. Participants planning to continue eating a healthier diet may also be invited to complete a follow-up period, which involves answering a short questionnaire at home every other day for two weeks. 7 individuals had in-person data collected prior to the pandemic requiring a shift to virtual data collection.
Study identification
- NCT ID
- NCT04105712
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 68 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 25 Years to 40 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jun 17, 2019
- Primary completion
- Oct 20, 2021
- Completion
- Oct 20, 2021
- Last update posted
- Oct 31, 2021
2019 – 2021
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Michigan | Ann Arbor | Michigan | 48109 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04105712, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Oct 31, 2021 · Synced Sep 3, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04105712 live on ClinicalTrials.gov.