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

NCT ID: NCT06258733

Last Updated: 2025-12-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

480 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-12-31

Study Completion Date

2027-02-01

Brief Summary

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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.

Detailed Description

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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.

Conditions

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Lifestyle Risk Reduction Health Behavior Food Habits

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

This is a quasi-experimental study with two arms
Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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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.

Group Type EXPERIMENTAL

Lay-led FL workshops

Intervention Type BEHAVIORAL

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.

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.

Group Type EXPERIMENTAL

Expert-led workshops

Intervention Type BEHAVIORAL

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.

Interventions

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Lay-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.

Intervention Type BEHAVIORAL

Expert-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.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Hebrew or Arabic literate women who are over 25 years old
Minimum Eligible Age

25 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Hebrew University of Jerusalem

OTHER

Sponsor Role collaborator

Hadassah Medical Organization

OTHER

Sponsor Role lead

Responsible Party

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Donna R Zwas

Director of Linda Joy Pollin Cardiovascular Wellness Center for Women

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Donna R Zwas, MD, MPH

Role: PRINCIPAL_INVESTIGATOR

Hadassah Medical Organization

Yael Bar-Zeev, MD, MPH, PhD

Role: PRINCIPAL_INVESTIGATOR

Hebrew University of Jerusalem

Central Contacts

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Donna R Zwas, MD, MPH

Role: CONTACT

011-972-2-677-9451

Keren L Greenberg, MPH

Role: CONTACT

References

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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. doi: 10.1186/s12889-025-25597-6. Online ahead of print. No abstract available.

Reference Type BACKGROUND
PMID: 41339836 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 20625115 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 29897866 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 22050554 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 24462490 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 23245603 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 30642736 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 29914503 (View on PubMed)

Other Identifiers

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FL-COST-HMO-CTIL

Identifier Type: -

Identifier Source: org_study_id