Your morning mood may decide your diet success
NCT ID NCT07407556
First seen Jun 24, 2026 · Last updated Jul 21, 2026 · Updated 3 times
Summary
This study explores whether adapting daily diet and lifestyle messages to a person's personality, daily energy, and barriers improves adherence compared to a standard one-size-fits-all approach. Twenty adults aged 18-45 will receive both types of messages over six weeks and report their progress. The goal is to see if this personalised, just-in-time support boosts engagement with a nutrition programme.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Psychology-tailored message
- What this could lead to
- If it works, this could point toward a more effective way to help people stick with personalised nutrition plans using daily behavioural prompts.
- What could go wrong
- This is a very small, early feasibility study with only 20 people. It tests a concept, not a treatment, and may not lead to any practical tool.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 20 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2026
- Expected to finish
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Jul 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 45 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Participants must: 1. Be 18-45 years old. 2. Have a BMI between 18.5 and 40 kg/m² (normal weight to obesity categories). 3. Own a smartphone with WhatsApp installed. 4. Be willing to receive daily messages for 6 weeks. 5. Be able to provide informed consent. 6. Be willing to provide a cheek swab for DNA analysis. 7. Have sufficient English proficiency to understand daily written instructions. Given that the programme focuses on the six pillars of lifestyle medicine (nutrition, physical activity, sleep, stress management, social connection, and alcohol/substance moderation), participants must be able to safely engage with light lifestyle recommendations. Exclusion Criteria: * Participants will be excluded if they: 1. Have a diagnosed eating disorder or significant disordered eating symptoms. 2. Are currently pregnant or breastfeeding. 3. Have any medical condition requiring medically supervised dietary modification (e.g., diabetes requiring medication, kidney disease, coeliac disease). 4. Are currently taking medication that significantly affects appetite, weight, or metabolism (e.g., GLP-1 agonists). 5. Work night shifts 6. Have severe mental health conditions (e.g., moderate-severe depression, psychosis). 7. Are participating in another behaviour-change or weight-related study. 8. Are unwilling to receive WhatsApp messages 9. Are unwilling to receive genetic information This will be checked with PARQ questionnaire Focus group participants: All 14 study participants will be invited to participate in the optional post-intervention focus group. As the focus group is limited to a maximum of 8 participants, if more than 8 express interest, selection will be made to ensure diversity across gender, age, engagement during the intervention and personality profile to maximise the richness of discussion. Participants who are not selected or who decline will not be disadvantaged in any way and their study data will be retained and analysed as normal.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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St Mary's University
Twickenham, Middlesex, TW1 4SX, United Kingdom