ClinicalTrials.gg
Not yet recruitingNCT06258733Updated Dec 17, 2025

Food Literacy Intervention - is a "Train the Trainer" Approach Feasible and Effective?

An interventional study of Lay-led FL workshops and Expert-led workshops in Lifestyle Risk Reduction, Health Behavior and Food Habits, sponsored by Hadassah Medical Organization. Not yet recruiting. Open to female participants aged 25 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-12-17.

Sponsored by Hadassah Medical Organization · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
480
Allocation
Non-randomized
Ages
25 Years and older
Sex
Female
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Study summary

Food literacy (FL) is the capability to make healthy food choices in different contexts, settings and situations. Although eating habits are shaped by different circumstances and skills, most nutrition programs focus on nutrition knowledge alone. Addressing factors such as competencies, self-efficacy and social norms enables sustainable positive change in nutrition behaviour. This study will assess a lay leader-led FL workshop to Arab and Jewish women from disadvantaged communities in the Jerusalem region, utilizing a train-the-trainer approach, and will compare the effectiveness and cost-effectiveness of a lay-led FL intervention to an expert-led intervention.

Read the detailed description

Food literacy (FL) is the capability to make healthy food choices in different contexts, settings and situations. Although eating habits are shaped by different circumstances and skills, most nutrition programs focus on nutrition knowledge alone. Addressing factors such as competencies, self-efficacy and social norms enables sustainable positive change in nutrition behaviour. This study will assess a lay leader-led FL workshop to Arab and Jewish women from disadvantaged communities in the Jerusalem region, utilizing a train-the-trainer approach, and will compare the effectiveness and cost-effectiveness of a manualized FL intervention given by trained lay-leaders vs. the same workshop given by experts.

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Conditions studied

  • Lifestyle Risk Reduction
  • Health Behavior
  • Food Habits
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In context

Risk Reduction Behavior

291 studies on the registry are indexed under Risk Reduction Behavior; 39 are open to participants now.

This study's planned enrollment of 480 is above the median of 201 across 250 interventional studies indexed under Risk Reduction Behavior.

Browse Risk Reduction Behavior studies →

Lead sponsor

Hadassah Medical Organization is the lead sponsor of 675 studies on the registry; 54 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
25 Years and older
Sexes eligible
Female
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Hebrew or Arabic literate women who are over 25 years old

Exclusion criteria

Exclusion Criteria:

  • Women who do not meet inclusion criteria.
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
480 participants (estimated)

Study arms

  • Experimental
    Lay-led FL workshops

    Community lay leaders who underwent training in a manualized program will disseminate the workshop to women in their communities through engaging visual and game-based tools.

    Behavioral: Lay-led FL workshops

  • Experimental
    Expert-led FL workshops

    Trained health experts will disseminate the same manualized program in community groups recruited by research staff to match lay-led groups.

    Behavioral: Expert-led workshops

Interventions

  • BehavioralLay-led FL workshops

    Groups of women recruited by trained lay-leaders will receive an 8-session lay-led FL workshop. Workshop participants will receive a self-report baseline survey at the first session, and post surveys at the last session and 3 months after the last session. The surveys will be anonymous and will be conducted and collected by the lay workshop facilitator. Lay-leaders will receive an incentive to collect surveys from workshop participants. A member of the research staff will be present at the time of the survey collection to ensure data are collected according to protocol. Monthly phone calls with lay-leaders will take place to ensure implementation in the community, including problem solving and help maintaining motivation. To help ensure implementation in the lay-led arm, lay leaders will be required to complete one workshop in the community before receiving a graduation certificate.

  • BehavioralExpert-led workshops

    Matching groups of women recruited by research staff will receive the same 8-session expert-led FL workshop. Workshop participants will receive a self-report baseline survey at the first session, and post surveys at the last session and 3 months after the last session. The surveys will be anonymous and will be conducted and collected by the expert workshop facilitator.

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What researchers measure

Primary outcomes

  1. Change in the effectiveness in raising FL level of a FL workshop given by trained lay leaders vs. experts

    Level of food literacy will be assessed by using a the validated Modified Self-Perceived Food Literacy Scale (M-SPFL) , including 23 questions, mean score ranging between 1-5, the higher the score the higher the food literacy level.

    Time frame: At baseline, last workshop session- up to five weeks since baseline, and three months after intervention

  2. Cost-effectiveness ratio of a FL workshop led by trained lay leaders vs. experts

    Cost-effectiveness analysis will compare the two alternatives by calculating the incremental Cost-Effectiveness Ratio (ICER). The Markov chain model will be used to predict short and long-term costs and effectiveness in both arms.

    Time frame: After 16 workshops in each arm are implemented. Approximately one year after the beginning of the study.

Secondary outcomes

  1. Change in Mediterranean Diet adherence

    Level of adherence to the Mediterranean Diet will be assessed by the Israeli Mediterranean Diet Adherence Screener (I-MEDAS) self-report validated scale. The scale includes 17 items, score ranging between 1-17, the higher the score the higher the food literacy level.

    Time frame: At baseline, last workshop session- up to five weeks since baseline, and three months after intervention

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Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Greenberg KL, Zwas DR, Donchin M, Bar-Zeev Y. Validation and adaptation of the self-perceived food literacy scale (SPFL) among Hebrew and Arabic speaking women in Israel. BMC Public Health. 2025 Dec 4;26(1):124. doi: 10.1186/s12889-025-25597-6. PubMed 41339836 ↗
  • Artinian NT, Fletcher GF, Mozaffarian D, Kris-Etherton P, Van Horn L, Lichtenstein AH, Kumanyika S, Kraus WE, Fleg JL, Redeker NS, Meininger JC, Banks J, Stuart-Shor EM, Fletcher BJ, Miller TD, Hughes S, Braun LT, Kopin LA, Berra K, Hayman LL, Ewing LJ, Ades PA, Durstine JL, Houston-Miller N, Burke LE; American Heart Association Prevention Committee of the Council on Cardiovascular Nursing. Interventions to promote physical activity and dietary lifestyle changes for cardiovascular risk factor reduction in adults: a scientific statement from the American Heart Association. Circulation. 2010 Jul 27;122(4):406-41. doi: 10.1161/CIR.0b013e3181e8edf1. Epub 2010 Jul 12. No abstract available. PubMed 20625115 ↗
  • Estruch R, Ros E, Salas-Salvado J, Covas MI, Corella D, Aros F, Gomez-Gracia E, Ruiz-Gutierrez V, Fiol M, Lapetra J, Lamuela-Raventos RM, Serra-Majem L, Pinto X, Basora J, Munoz MA, Sorli JV, Martinez JA, Fito M, Gea A, Hernan MA, Martinez-Gonzalez MA; PREDIMED Study Investigators. Primary Prevention of Cardiovascular Disease with a Mediterranean Diet Supplemented with Extra-Virgin Olive Oil or Nuts. N Engl J Med. 2018 Jun 21;378(25):e34. doi: 10.1056/NEJMoa1800389. Epub 2018 Jun 13. PubMed 29897866 ↗
  • Kalter-Leibovici O, Chetrit A, Lubin F, Atamna A, Alpert G, Ziv A, Abu-Saad K, Murad H, Eilat-Adar S, Goldbourt U. Adult-onset diabetes among Arabs and Jews in Israel: a population-based study. Diabet Med. 2012 Jun;29(6):748-54. doi: 10.1111/j.1464-5491.2011.03516.x. PubMed 22050554 ↗
  • Vidgen HA, Gallegos D. Defining food literacy and its components. Appetite. 2014 May;76:50-9. doi: 10.1016/j.appet.2014.01.010. Epub 2014 Jan 22. PubMed 24462490 ↗
  • Wang H, Dwyer-Lindgren L, Lofgren KT, Rajaratnam JK, Marcus JR, Levin-Rector A, Levitz CE, Lopez AD, Murray CJ. Age-specific and sex-specific mortality in 187 countries, 1970-2010: a systematic analysis for the Global Burden of Disease Study 2010. Lancet. 2012 Dec 15;380(9859):2071-94. doi: 10.1016/S0140-6736(12)61719-X. PubMed 23245603 ↗
  • Abu-Saad K, Endevelt R, Goldsmith R, Shimony T, Nitsan L, Shahar DR, Keinan-Boker L, Ziv A, Kalter-Leibovici O. Adaptation and predictive utility of a Mediterranean diet screener score. Clin Nutr. 2019 Dec;38(6):2928-2935. doi: 10.1016/j.clnu.2018.12.034. Epub 2019 Jan 5. PubMed 30642736 ↗
  • Poelman MP, Dijkstra SC, Sponselee H, Kamphuis CBM, Battjes-Fries MCE, Gillebaart M, Seidell JC. Towards the measurement of food literacy with respect to healthy eating: the development and validation of the self perceived food literacy scale among an adult sample in the Netherlands. Int J Behav Nutr Phys Act. 2018 Jun 18;15(1):54. doi: 10.1186/s12966-018-0687-z. PubMed 29914503 ↗

Individual participant data

Plan to share: Undecided

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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Dec 2025; primary completion for Dec 2026, 12 months later.

Of 167 non-industry interventional studies with no phase under Risk Reduction Behavior, half reached primary completion within 25 months of starting (the median), counting those still running; a quarter within 13 and three quarters within 42. This study's planned 12 months is below that.

Counting every sponsor, half of 169 studies reached it within 25 months; a quarter within 13 and three quarters within 46.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 6, 2024
First posted
Feb 14, 2024
StartEst.
Dec 2025
Primary completionEst.
Dec 2026
CompletionEst.
Feb 1, 2027
Last update
Dec 17, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 17, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06258733
Collaborators
Hebrew University of Jerusalem
Responsible party
Donna R Zwas (Director of Linda Joy Pollin Cardiovascular Wellness Center for Women, Hadassah Medical Organization) — Principal investigator
First posted
Feb 14, 2024
Start date
Dec 2025 (estimated)
Primary completion
Dec 2026 (estimated)
Completion
Feb 1, 2027 (estimated)
Last update
Dec 17, 2025

Study contacts

Donna R Zwas, MD, MPH
Contact
dannaz@hadassah.org.il
011-972-2-677-9451
Keren L Greenberg, MPH
Contact
Donna R Zwas, MD, MPH
principal investigator · Hadassah Medical Organization
Yael Bar-Zeev, MD, MPH, PhD
principal investigator · Hebrew University of Jerusalem

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.

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