Educational ConditionNCT07600606
Add a Legume to Your Cart
A study testing Educational, Persuasive and Tailored in people with Educational Condition and Persuasive Condition, run by University of Milano Bicocca at 1 site in Italy.
Trial summary
This study aims to evaluate the efficacy of a healthy diet promotion intervention focused on increasing legume consumption. The intervention is delivered via mobile application in a sample drawn from the healthy adult population. Read more about this study
- Who is it for?
- Ages 18 to 30 yearsHealthy volunteers can take part
- Conditions the study is for
- Educational Condition, Persuasive Condition, Tailored Condition
- What is being tested?
- Educational, Persuasive and Tailored
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 682 participants
- Where
- 1 siteItaly
- Study dates
- 17 Nov 2025to 13 Mar 2026
- Phase
- Interventional
- Are there results?
- None posted in the registry
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 30 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- be university students (enrolled in a bachelor's degree, master's degree/specialized degree/single-cycle degree program, or postgraduate education);
- own a smartphone.
Who cannot join
- consume an adequate amount of legumes (> 3 servings);
- suffer from one or more conditions that could represent a contraindication to the consumption of certain specific categories of legumes, such as favism, allergies, irritable bowel syndrome, short bowel syndrome and/or leaky gut, forms of intestinal dysbiosis, or other intestinal disorders.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Add a Legume to Your Cart: The Role of Tailored Communication in Promoting Healthier and More Sustainable Food Purchasing - A Study Within the Framework of the PNRR 10 ON FOODS Partnership
This study aims to evaluate the efficacy of a healthy diet promotion intervention focused on increasing legume consumption. The intervention is delivered via mobile application in a sample drawn from the healthy adult population.
Read the detailed description
This study investigates the effects of different communication strategies on behavioral change. The intervention is designed to promote legume consumption. After compiling different profiling and assessment questionnaires, participants watch one of three different possible type of brief video performed by professional actors that discuss the benefits of eating more legumes in terms of health and environmental benefits. Then, with an ad-hoc designed task, they do a simulated grocery shopping and an automatic task to assess approach-avoidance tendency towards meat vs. legumes dishes. Finally, explicit attitudes are assessed.
Group differences are explored across three experimental conditions, which vary in the communication strategies. Group 1 watches a video with an educational communicative style and content (EDUCATIONAL), group watches a video presented with a persuasive style, and general content (PERSUASIVE), while group 3 watches a persuasive video with tailored content, based on the profiling phase (TAILORED).
The primary aim of the study is to evaluate the impact of these different communication strategies on attitudes and legume purchase. Secondary aims include the investigation of differences in other unspecific purchases.
- Being tested
- Educational, Persuasive, Tailored
- Keywords
- legumes, well-being, food education, healthy diet, communication strategies
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
EducationalOther
Participants watch an educational video about the benefits of eating legumes. Then, they perform the grocery shopping simulation and the automatic task for approach/avoidance assessment
PersuasiveOther
Participants watch a persuasive video with educational content about the benefits of eating legumes. Then, they perform the grocery shopping simulation
TailoredOther
Participants watch a persuasive video with a tailored content about the benefits of eating legumes. Then, they perform the grocery shopping simulation
| Study group | Role | What they receive |
|---|---|---|
| Educational | Experimental | Participants watch a video with an educational content and communicative style about the benefits of eating legumes Receives: Other: Educational |
| Persuasive | Experimental | Participants watch a video with an educational content and a persuasive communicative style about the benefits of eating legumes Receives: Other: Persuasive |
| Tailored | Experimental | Participants watch a video with a persuasive communicative style and tailored content about the benefits of eating legumes Receives: Other: Tailored |
What is being measured
The primary outcome is the main question the study is designed to answer.
Portions of purchased legumes - task 1 - simulation on online grocery shopping
In the first task, specifically designed for the present study, participants are asked to complete a simulated online grocery shopping for the following week. The task is structured to closely resemble a real shopping experience: each item can be added to the virtual cart in a potentially unlimited number of units, with higher values indicating larger quantities purchased and a value of zero indicating that the item was not selected.
The primary outcome will consist of the total number of legume-based items selected, subsequently converted into servings. This conversion process will be carried out by the nutrition research team.
Measured: T1 - day 3. After compiling the baseline assessment (T0) at day 1, participants received the link to complete the second part of the survey at day 3, which was to be completed by the end of the day.
Explicit attitudes about legumes
Participants were asked to express their opinions about legumes using six different bipolar scales, introduced with the following instruction:
"Now think about legumes (e.g., chickpeas, peas, beans, lentils, broad beans). Which adjectives do you consider most appropriate to describe them? Please respond to each pair of adjectives without overthinking your answer."
The bipolar adjective pairs were as follows: negative-positive; bland-tasty; isolating-convivial; unsatisfying-satiating; difficult-easy; loser-winner.
Responses were recorded on 7-point scales ranging from 1 (indicating the negative pole of each adjective pair) to 7 (indicating the positive pole of each adjective pair).
Measured: T1 - day 3. After compiling the baseline assessment (T0) at day 1, participants received the link to complete the second part of the survey at day 3, which was to be completed by day 3.
Swipe Approach-Avoidance Task (SwipeAAT)
The Swipe Approach-Avoidance Task (SwipeAAT) is a smartphone-based version of the Approach-Avoidance Task, in which participants interact with visual stimuli according to specific instructions. Stimuli must either be "approached" (by swiping upward) or "avoided" (by swiping downward) depending on the instructions provided. Reaction times recorded during task performance are analyzed to infer spontaneous behavioral tendencies of approach or avoidance toward the presented stimuli.
To assess spontaneous approach and avoidance tendencies toward legumes and meat, two scores were computed for each participant:
Legume SwipeAAT score, calculated as the difference between the mean of all valid latencies (see Data Exclusion) for the "Avoid legumes" trials and the "Approach legumes" trials.
Meat SwipeAAT score, calculated as the difference between the mean of all valid latencies (see Data Exclusion) for the "Avoid meat" trials and the "Approach meat" trials.
Measured: T1 - day 3. After compiling the baseline assessment (T0) at day 1, participants received the link to complete the second part of the survey at day 3, which was to be completed by day 3.
Intention to increase legumes portions in the future - single ad hoc item
Participants were asked to report their future intention to increase their weekly consumption of legumes using a single-item measure ("Do you intend to increase your consumption of legumes in the near future?"). Responses were provided on a 5-point scale ranging from 1 ("absolutely not") to 5 ("absolutely yes").
Measured: T1 - day 3. After compiling the baseline assessment (T0) at day 1, participants received the link to complete the second part of the survey at day 3, which was to be completed by day 3.
Secondary outcomes (1)
Portions of other purchased items - task 1 - simulation on online grocery shopping
In addition to legumes, purchases made during the online grocery shopping simulation task will also be analyzed for other categories of interest, including meat, fruit and vegetables, processed foods, and related product categories.
Measured: T1 - day 3. After compiling the baseline assessment (T0) at day 1, participants received the link to complete the second part of the survey at day 3, which was to be completed by day 3.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 May 2026
- Study start17 Nov 2025
- Primary completion13 Mar 2026
- Study completion13 Mar 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Educational ConditionStudies of the same condition, open and under way.
- 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
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 682 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Milano Bicocca
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Patrizia Steca, Study director, University of Milan-BicoccaMaria Elide Vanutelli, Principal investigator, University of Milan-Bicocca
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07600606
- Sponsor's protocol ID
- RM-2025-1014
- Other IDs
- PE00000003;CUP D93C22000890001
- Status last verified
- May 2026
- First submitted
- 6 May 2026
- Last updated
- 11 Jun 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Igartua JJ, Rodriguez-Contreras L. Narrative Voice Matters! Improving Smoking Prevention with Testimonial Messages through Identification and Cognitive Processes. Int J Environ Res Public Health. 2020 Oct 5;17(19):7281. doi: 10.3390/ijerph17197281.
PubMed 33028030Cheng G, Li W, He M, Liao L. Exploring consumer responses to official endorsement: roles of credibility and attractiveness attributes in live streaming. Front Psychol. 2024 May 20;15:1371343. doi: 10.3389/fpsyg.2024.1371343. eCollection 2024.
PubMed 38831950
Study at a glance
From the registry record, last updated by the sponsor on 11 Jun 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Add a Legume to Your Cart: The Role of Tailored Communication in Promoting Healthier and More Sustainable Food Purchasing - A Study Within the Framework of the PNRR 10 ON FOODS Partnership
- ClinicalTrials.gov ID
- NCT07600606
- Acronym / sponsor ID
- RM-2025-1014
- Keywords
- legumes, well-being, food education, healthy diet, communication strategies
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 682 participants (actual)
- Lead sponsor
- University of Milano BicoccaUniversity, hospital or other
- Study start
- 17 Nov 2025 (actual)
- Primary completion
- 13 Mar 2026 (actual)
- Study completion
- 13 Mar 2026 (actual)
- First posted
- 20 May 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study aims to evaluate the efficacy of a healthy diet promotion intervention focused on increasing legume consumption. The intervention is delivered via mobile application in a sample drawn from the healthy adult population.
Detailed description
This study investigates the effects of different communication strategies on behavioral change. The intervention is designed to promote legume consumption. After compiling different profiling and assessment questionnaires, participants watch one of three different possible type of brief video performed by professional actors that discuss the benefits of eating more legumes in terms of health and environmental benefits. Then, with an ad-hoc designed task, they do a simulated grocery shopping and an automatic task to assess approach-avoidance tendency towards meat vs. legumes dishes. Finally, explicit attitudes are assessed.
Group differences are explored across three experimental conditions, which vary in the communication strategies. Group 1 watches a video with an educational communicative style and content (EDUCATIONAL), group watches a video presented with a persuasive style, and general content (PERSUASIVE), while group 3 watches a persuasive video with tailored content, based on the profiling phase (TAILORED).
The primary aim of the study is to evaluate the impact of these different communication strategies on attitudes and legume purchase. Secondary aims include the investigation of differences in other unspecific purchases.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Educational | Experimental | Other: EducationalParticipants watch a video with an educational content and communicative style about the benefits of eating legumes |
| Persuasive | Experimental | Other: PersuasiveParticipants watch a video with an educational content and a persuasive communicative style about the benefits of eating legumes |
| Tailored | Experimental | Other: TailoredParticipants watch a video with a persuasive communicative style and tailored content about the benefits of eating legumes |
Who may qualify
- Ages
- 18 to 30 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (2 listed)
- be university students (enrolled in a bachelor's degree, master's degree/specialized degree/single-cycle degree program, or postgraduate education);
- own a smartphone.
Key exclusion criteria (2 listed)
- consume an adequate amount of legumes (> 3 servings);
- suffer from one or more conditions that could represent a contraindication to the consumption of certain specific categories of legumes, such as favism, allergies, irritable bowel syndrome, short bowel syndrome and/or leaky gut, forms of intestinal dysbiosis, or other intestinal disorders.
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 |
|---|---|---|
| EducationalParticipants watch an educational video about the benefits of eating legumes. Then, they perform the grocery shopping simulation and the automatic task for approach/avoidance assessment | Other | Educational |
| PersuasiveParticipants watch a persuasive video with educational content about the benefits of eating legumes. Then, they perform the grocery shopping simulation | Other | Persuasive |
| TailoredParticipants watch a persuasive video with a tailored content about the benefits of eating legumes. Then, they perform the grocery shopping simulation | Other | Tailored |
Primary outcome
Portions of purchased legumes - task 1 - simulation on online grocery shopping
Time frame: T1 - day 3. After compiling the baseline assessment (T0) at day 1, participants received the link to complete the second part of the survey at day 3, which was to be completed by the end of the day.
In the first task, specifically designed for the present study, participants are asked to complete a simulated online grocery shopping for the following week. The task is structured to closely resemble a real shopping experience: each item can be added to the virtual cart in a potentially unlimited number of units, with higher values indicating larger quantities purchased and a value of zero indicating that the item was not selected. The primary outcome will consist of the total number of legume-based items selected, subsequently converted into servings. This conversion process will be carried out by the nutrition research team.
Explicit attitudes about legumes
Time frame: T1 - day 3. After compiling the baseline assessment (T0) at day 1, participants received the link to complete the second part of the survey at day 3, which was to be completed by day 3.
Participants were asked to express their opinions about legumes using six different bipolar scales, introduced with the following instruction: "Now think about legumes (e.g., chickpeas, peas, beans, lentils, broad beans). Which adjectives do you consider most appropriate to describe them? Please respond to each pair of adjectives without overthinking your answer." The bipolar adjective pairs were as follows: negative-positive; bland-tasty; isolating-convivial; unsatisfying-satiating; difficult-easy; loser-winner. Responses were recorded on 7-point scales ranging from 1 (indicating the negative pole of each adjective pair) to 7 (indicating the positive pole of each adjective pair).
Swipe Approach-Avoidance Task (SwipeAAT)
Time frame: T1 - day 3. After compiling the baseline assessment (T0) at day 1, participants received the link to complete the second part of the survey at day 3, which was to be completed by day 3.
The Swipe Approach-Avoidance Task (SwipeAAT) is a smartphone-based version of the Approach-Avoidance Task, in which participants interact with visual stimuli according to specific instructions. Stimuli must either be "approached" (by swiping upward) or "avoided" (by swiping downward) depending on the instructions provided. Reaction times recorded during task performance are analyzed to infer spontaneous behavioral tendencies of approach or avoidance toward the presented stimuli. To assess spontaneous approach and avoidance tendencies toward legumes and meat, two scores were computed for each participant: Legume SwipeAAT score, calculated as the difference between the mean of all valid latencies (see Data Exclusion) for the "Avoid legumes" trials and the "Approach legumes" trials. Meat SwipeAAT score, calculated as the difference between the mean of all valid latencies (see Data Exclusion) for the "Avoid meat" trials and the "Approach meat" trials.
Intention to increase legumes portions in the future - single ad hoc item
Time frame: T1 - day 3. After compiling the baseline assessment (T0) at day 1, participants received the link to complete the second part of the survey at day 3, which was to be completed by day 3.
Participants were asked to report their future intention to increase their weekly consumption of legumes using a single-item measure ("Do you intend to increase your consumption of legumes in the near future?"). Responses were provided on a 5-point scale ranging from 1 ("absolutely not") to 5 ("absolutely yes").
1 secondary outcome
Portions of other purchased items - task 1 - simulation on online grocery shopping
Time frame: T1 - day 3. After compiling the baseline assessment (T0) at day 1, participants received the link to complete the second part of the survey at day 3, which was to be completed by day 3.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 11 Jun 2026.
- Background: PubMed 33028030Igartua JJ, Rodriguez-Contreras L. Narrative Voice Matters! Improving Smoking Prevention with Testimonial Messages through Identification and Cognitive Processes. Int J Environ Res Public Health. 2020 Oct 5;17(19):7281. doi: 10.3390/ijerph17197281.
- Background: PubMed 38831950Cheng G, Li W, He M, Liao L. Exploring consumer responses to official endorsement: roles of credibility and attractiveness attributes in live streaming. Front Psychol. 2024 May 20;15:1371343. doi: 10.3389/fpsyg.2024.1371343. eCollection 2024.
- Individual participant dataSharing planned: No
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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.
Patrizia Steca study director
University of Milan-Bicocca
Maria Elide Vanutelli principal investigator
University of Milan-Bicocca
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Educational, Persuasive and Tailored in people with Educational Condition and Persuasive Condition, run by University of Milano Bicocca at 1 site in Italy.
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 2 inclusion and 2 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 11 Jun 2026. 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 Italy. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Portions of purchased legumes - task 1 - simulation on online grocery shopping (time frame: T1 - day 3. After compiling the baseline assessment (T0) at day 1, participants received the link to complete the second part of the survey at day 3, which was to be completed by the end of the day.). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07600606, which also lists 2 linked publications.
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 11 Jun 2026.