Food SelectionNCT06175026
Encouraging Healthy and Sustainable Dietary Substitutions
A study testing Health messages, Environmental messages and Health and environmental messages in people with Food Selection, run by Stanford University at 1 site in United States.
Trial summary
The aim of this study is to examine emerging adults' responses to dietary substitution messages about health, the environment, or both health and the environment. Read more about this study
- Who is it for?
- Ages 18 to 25 yearsHealthy volunteers can take part
- Conditions the study is for
- Food Selection
- What is being tested?
- Health messages, Environmental messages and Health and environmental messages
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 1,753 participants
- Where
- 1 siteUnited States
- Study dates
- 22 Jan 2024to 2 Feb 2024
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 25 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Age between 18-25 years
- Reside in the United States
- Ability to complete a survey in English
Who cannot join
- Older than 25 years; younger than 18 years
- Reside outside of the United States
- Unable to complete a survey in English
Trial locations and contacts
1 site in 1 country.
United States1 site
Stanford School of Medicine
Palo Alto, California, 94304
About this study
Official title: Encouraging Healthy and Sustainable Dietary Substitutions: A Randomized Experiment With Emerging Adults
The aim of this study is to examine emerging adults' responses to dietary substitution messages about health, the environment, or both health and the environment.
Read the detailed description
This online study will examine emerging adults' responses to dietary substitution messages about 4 different topics. Participants will be randomized to 1 of 4 topic arms: 1) Control (neutral topic, not related to health or the environment); 2) Health topic; 3) Environment topic; 4) Health and Environment topic. Participants will view messages about each of 4 dietary substitutions: replacing red meat with chicken or vegetarian options; replacing dairy milk with non-dairy milk; replacing juice with whole fruit; and replacing sugar-sweetened beverages with water. For each dietary substitution, participants will view 2 messages about their assigned topic, with the 2 messages shown in random order. Participants will rate each message on perceived message effectiveness (primary outcome).
- Conditions
- Food Selection
- Being tested
- Health messages, Environmental messages, Health and environmental messages, Neutral messages
- Keywords
- health, environment, sustainability, food choices, dietary substitutions, diet, emerging adults
- Medical subject headings
- Food Preferences
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Health messagesBehavioural
Participants view messages about the health impacts of certain dietary substitutions.
Environmental messagesBehavioural
Participants view messages about the environmental impacts of certain dietary substitutions.
Health and environmental messagesBehavioural
Participants view messages about the health and environmental impacts of certain dietary substitutions.
Neutral messagesBehavioural
Participants view neutral messages unrelated to the health and environmental impacts of certain dietary substitutions.
| Study group | Role | What they receive |
|---|---|---|
| Health messages | Experimental | Messages shown will be related to the health impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water). Receives: Behavioral: Health messages |
| Environment messages | Experimental | Messages shown will be related to the environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water). Receives: Behavioral: Environmental messages |
| Health and environment messages | Experimental | Messages shown will be related to the health and environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water). Receives: Behavioral: Health and environmental messages |
| Neutral messages | Active comparator | Messages shown will be neutral and unrelated to the health or environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water). Receives: Behavioral: Neutral messages |
What is being measured
The primary outcome is the main question the study is designed to answer.
Perceived Message Effectiveness
Participants will rate each message on perceived message effectiveness (PME) for encouraging participants to make the target dietary substitution. PME will be assessed with 4 items [the text shown in brackets will be tailored to each substitution]:
- How much does this message discourage you from wanting to [eat beef and pork / drink juice / drink cow's milk / drink sugary drinks]?
- How much does this message make [eating beef and pork, etc.] seem unpleasant to you?
- How much does this message make you concerned about the effects of [eating beef and pork, etc.]?
- How much does this message make you want to [eat chicken or vegetarian options instead of beef and pork, etc.]?
The response options for each item are: 1=Not at all, 2=Very little, 3=Somewhat, 4=Quite a bit, 5=A great deal.
Investigators will average responses to these 4 items to create a perceived message effectiveness score. Higher scores indicated higher perceived message effectiveness.
Measured: Survey questions administered after participant viewed each message; overall survey took up to 20 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Dec 2023
- Study start22 Jan 2024
- Primary completion2 Feb 2024
- Study completion2 Feb 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Food SelectionStudies of the same condition, open and under way.
- More trials run by Stanford UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 1,753 participants (actual)
Sponsor and investigators
- Lead sponsor
- Stanford University
- Sponsor type
- University, hospital or other
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI)
- Responsible party
- Principal investigator, Anna Grummon, Stanford University
- Investigators
- Anna Grummon, PhD, Principal investigator, Assistant Professor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06175026
- Sponsor's protocol ID
- 71737
- Other IDs
- K01HL158608
- Status last verified
- Nov 2024
- First submitted
- 30 Nov 2023
- Last updated
- 12 Nov 2024
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: We will post de-identified data to a public repository.
Study at a glance
From the registry record, last updated by the sponsor on 12 Nov 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Encouraging Healthy and Sustainable Dietary Substitutions: A Randomized Experiment With Emerging Adults
- ClinicalTrials.gov ID
- NCT06175026
- Acronym / sponsor ID
- 71737
- Conditions
- Food Selection
- Keywords
- health, environment, sustainability, food choices, dietary substitutions, diet, emerging adults
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 1,753 participants (actual)
- Lead sponsor
- Stanford UniversityUniversity, hospital or other
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI)
- Study start
- 22 Jan 2024 (actual)
- Primary completion
- 2 Feb 2024 (actual)
- Study completion
- 2 Feb 2024 (actual)
- First posted
- 18 Dec 2023 (actual)
- Results
- Posted 12 Nov 2024
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this study is to examine emerging adults' responses to dietary substitution messages about health, the environment, or both health and the environment.
Detailed description
This online study will examine emerging adults' responses to dietary substitution messages about 4 different topics. Participants will be randomized to 1 of 4 topic arms: 1) Control (neutral topic, not related to health or the environment); 2) Health topic; 3) Environment topic; 4) Health and Environment topic. Participants will view messages about each of 4 dietary substitutions: replacing red meat with chicken or vegetarian options; replacing dairy milk with non-dairy milk; replacing juice with whole fruit; and replacing sugar-sweetened beverages with water. For each dietary substitution, participants will view 2 messages about their assigned topic, with the 2 messages shown in random order. Participants will rate each message on perceived message effectiveness (primary outcome).
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Health messages | Experimental | Behavioral: Health messagesMessages shown will be related to the health impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water). |
| Environment messages | Experimental | Behavioral: Environmental messagesMessages shown will be related to the environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water). |
| Health and environment messages | Experimental | Behavioral: Health and environmental messagesMessages shown will be related to the health and environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water). |
| Neutral messages | Active comparator | Behavioral: Neutral messagesMessages shown will be neutral and unrelated to the health or environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water). |
Who may qualify
- Ages
- 18 to 25 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- Age between 18-25 years
- Reside in the United States
- Ability to complete a survey in English
Key exclusion criteria (3 listed)
- Older than 25 years; younger than 18 years
- Reside outside of the United States
- Unable to complete a survey in English
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Health messagesParticipants view messages about the health impacts of certain dietary substitutions. | Behavioural | Health messages |
| Environmental messagesParticipants view messages about the environmental impacts of certain dietary substitutions. | Behavioural | Environment messages |
| Health and environmental messagesParticipants view messages about the health and environmental impacts of certain dietary substitutions. | Behavioural | Health and environment messages |
| Neutral messagesParticipants view neutral messages unrelated to the health and environmental impacts of certain dietary substitutions. | Behavioural | Neutral messages |
Primary outcome
Perceived Message Effectiveness
Time frame: Survey questions administered after participant viewed each message; overall survey took up to 20 minutes
Participants will rate each message on perceived message effectiveness (PME) for encouraging participants to make the target dietary substitution. PME will be assessed with 4 items [the text shown in brackets will be tailored to each substitution]: 1. How much does this message discourage you from wanting to [eat beef and pork / drink juice / drink cow's milk / drink sugary drinks]? 2. How much does this message make [eating beef and pork, etc.] seem unpleasant to you? 3. How much does this message make you concerned about the effects of [eating beef and pork, etc.]? 4. How much does this message make you want to [eat chicken or vegetarian options instead of beef and pork, etc.]? The response options for each item are: 1=Not at all, 2=Very little, 3=Somewhat, 4=Quite a bit, 5=A great deal. Investigators will average responses to these 4 items to create a perceived message effectiveness score. Higher scores indicated higher perceived message effectiveness.
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Nov 2024.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Individual participant dataSharing planned: Yes. We will post de-identified data to a public repository.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Anna Grummon, PhD principal investigator
Assistant Professor
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Health messages, Environmental messages and Health and environmental messages in people with Food Selection, run by Stanford University at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 12 Nov 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Yes. Results are posted in the registry (first posted 12 Nov 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Perceived Message Effectiveness (time frame: Survey questions administered after participant viewed each message; overall survey took up to 20 minutes). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Nov 2024.