ClinicalTrials.gg
CompletedNCT05403060Updated Feb 9, 2023

Educational Nutritional Intervention for Adolescents

An interventional study of ALIADA: Alimentación, Adolescencia y Ambiente in Early Intervention, Educational, Health Promotion and Feeding Behavior, sponsored by Centro Universitario de Ciencias de la Salud, Mexico. Completed at 1 site in Mexico. Open to participants aged 14 Years to 19 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-02-09.

Sponsored by Centro Universitario de Ciencias de la Salud, Mexico · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
500
Allocation
Randomized
Ages
14 Years to 19 Years
Sex
All
01

Study summary

Randomized controlled trial by conglomerates whose objective is to evaluate the effectiveness of an educational nutritional intervention, based on the Social Cognitive Theory, for the increase in the consumption of vegetables and fruits and the decrease in the consumption of ultra-processed foods in adolescent high school students, in the University of Guadalajara, in Guadalajara, Jalisco.

Read the detailed description

Background: Adolescent nutrition is of vital importance for their growth and development, at this stage eating habits for adult life are consolidated. However, currently the eating habits of adolescents are mainly characterized by a high consumption of ultra-processed foods and a low consumption of vegetables and fruits. Effective nutritional interventions focused on this age group can contribute to the prevention of adolescent diseases at the current stage and in later stages.

Objective: To evaluate the efficacy of an educational nutritional intervention, based on the Social Cognitive Theory, to increase the consumption of vegetables and fruits and decrease the consumption of ultra-processed foods, in adolescent high school students at the University of Guadalajara (UDG), in Guadalajara, Jalisco, in the year 2022.

Material and methods: Randomized controlled trial by conglomerates, students from the school groups chosen at random, from two high schools (one as a control group and another intervention) also chosen at random will be included. Adolescents who agree to participate will complete pre- and post-intervention assessments on fruit and vegetable consumption and ultra-processed foods. A multilevel analysis will be used to compare post-intervention variables between groups.

02

Conditions studied

  • Early Intervention, Educational
  • Health Promotion
  • Feeding Behavior
  • Adolescent Health

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Keywords

  • Vegetables
  • Fruit
  • Ultra-processed Food
03

In context

Feeding Behavior

985 studies on the registry are indexed under Feeding Behavior; 178 are open to participants now.

This study's enrollment of 500 is above the median of 77 across 700 interventional studies indexed under Feeding Behavior.

Browse Feeding Behavior studies →

Lead sponsor

Centro Universitario de Ciencias de la Salud, Mexico is the lead sponsor of 27 studies on the registry; none are open to participants now.

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

04

Who can participate

Ages eligible
14 Years to 19 Years
Sexes eligible
All
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

  • Students enrolled in the included high schools (1st to 6th semester, morning and evening shift)
  • That they agree to participate and complete the assent and form

Exclusion criteria

Exclusion Criteria:

  • Students who do not wish to participate
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
500 participants (actual)

Study arms

  • Experimental
    Intervention

    Educational nutritional intervention, based on the Social Cognitive Theory

    Behavioral: ALIADA: Alimentación, Adolescencia y Ambiente

  • No intervention
    Control

    Regular school education, without educational nutritional intervention

Interventions

  • BehavioralALIADA: Alimentación, Adolescencia y Ambiente

    The objective of the educational nutritional intervention is to promote in adolescents an increase in their consumption of vegetables and fruits and a decrease in their consumption of ultra-processed foods, through the application of the TSC constructs, with the use of education by pairs as the main strategy (peer leaders). It lasts two months, includes three exclusive sessions for peer leaders and five sessions for all participants, where the leaders, together with the researchers, will lead the activities of the sessions, as well as a general event for all high school students. Intervention activities include: electronic presentations, videos, food preparation and label reading workshops, individual and team reflection activities, goal setting and monitoring, board games, contests, among others. In addition, each participant is given a workbook, which contains key messages and activities for each educational session.

06

What researchers measure

Primary outcomes

  1. Change in vegetables and fruits

    Pre-post intervention change in vegetable and fruit consumption (servings/day (direct values, no scores assigned), post intervention consumption minus pre intervention consumption, as measured by a semiquantitative food frequency questionnaire, positive values of change are desirable , that is, increased consumption of vegetables and fruits)

    Time frame: 2 months

  2. Change in ultra-processed foods

    Pre-post intervention change in consumption of ultra-processed foods (servings/day (direct values, no scores assigned)), post intervention consumption minus pre intervention consumption, as measured by a semiquantitative food frequency questionnaire, negative values of change are desirable, that is, reduction in the consumption of ultra-processed foods)

    Time frame: 2 months

07

Study locations

1 site
  • Upper Secondary Education System of the University of Guadalajara
    Guadalajara, Mexico
08

References and documents

Publications

  • McAlister AL, Perry CL, Parcel G. How individuals, environments and health behavior interact: social cognitive theory. In: Glanz K, Rimer BK, Viswanath K, eds. Health Behavior and Health Education: Theory, Research and Practice. 4°. Jossey-Bass A Wiley Imprint; 2008:169-188.

Individual participant data

Plan to share: No

09

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

Ran from Mar 2022 to primary completion in May 2022, 2 months.

Of 503 non-industry interventional studies with no phase under Feeding Behavior, half reached primary completion within 14 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 31. This study's 2 months is below that.

Counting every sponsor, half of 515 studies reached it within 14 months; a quarter within 5 and three quarters within 31.

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

Registered
Feb 24, 2022
First posted
Jun 3, 2022
StartActual
Mar 1, 2022
Primary completionActual
May 12, 2022
CompletionActual
May 23, 2022
Last update
Feb 9, 2023
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 Feb 9, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05403060
Lead sponsor
Centro Universitario de Ciencias de la Salud, Mexico
Responsible party
Gabriela Macedo Ojeda (PhD in Public Health Sciences, Centro Universitario de Ciencias de la Salud, Mexico) — Principal investigator
First posted
Jun 3, 2022
Start date
Mar 1, 2022
Primary completion
May 12, 2022
Completion
May 23, 2022
Last update
Feb 9, 2023

Study contacts

Gabriela Macedo Ojeda, PhD
study director · Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara

Oversight

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

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This study is completed, as verified in Feb 2023. You cannot join it, but the record below documents what was studied.

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