Evidence map›Paper›PMID 37016430›Full record

ArticleThe international journal of behavioral nutrition and physical activity2023

Changes in children's and adolescents' dietary intake after the implementation of Chile's law of food labeling, advertising and sales in schools: a longitudinal study.

Gabriela Fretes, Camila Corvalán, Marcela Reyes, Lindsey Smith Taillie, Christina D Economos, Norbert L W Wilson, Sean B Cash

Abstract read
In one paragraph

Article in The international journal of behavioral nutrition and physical activity, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Goals in Nutrition Science 2025-2030.Frontiers in nutrition · 2026
    Review
  7. Article
  8. Scoping review of evidence on front-of-pack warning labels and nutrition and health variables in Peru.Revista panamericana de salud publica = Pan American journal of public health · 2026
    Review
  9. Article
  10. Twenty years of behavioral nutrition- A reflection on the road less travelled.The international journal of behavioral nutrition and physical activity · 2025
    Article
  11. Article
  12. Article
  13. Using a systems thinking approach to map the global rise of ultra-processed foods in population diets.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2025
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Gabriela FretesInternational Food Policy Research Institute (IFPRI), 1201 Eye St NW, Washington, DC, USA.
Camila CorvalánInstituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile.
Marcela ReyesInstituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile.
Lindsey Smith TaillieDepartment of Nutrition, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.
Christina D EconomosFriedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA.
Norbert L W WilsonDuke Divinity School, Sanford School of Public Policy, and World Food Policy Center, Duke University, Durham, NC, USA.
Sean B CashFriedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA. sean.cash@tufts.edu.ORCID 0000-0002-7561-3392

Funding

UNIV OF NORTH CAROLINA CLINICAL NUTRITION RESEARCH UNITP30DK056350 · NIDDK · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Venkata Saroja Voruganti · 1999 to 2026
$31.6M
Research Services CoreP2CHD050924 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI KAREN B GUZZO · 2015 to 2026
$9.6M
Gates Foundation INV-002962NICHD NIH HHS P2C HD050924NIDDK NIH HHS P30 DK056350
6 · The paper itself

Abstract

backgroundIn June 2016, a comprehensive food policy was implemented in Chile that included front-of-package warning labels on key nutrients of concern (total sugars, added saturated fats, sodium, and calories), child-directed food advertisement bans, and school regulations. The policy was implemented in 3 phases from 2016 to 2019 and the primary objective was to improve children's food environments. This study's objective was to assess changes in child and adolescent intake of key nutrients of concern (total sugars, saturated fats, and sodium) at school after the initial implementation of Chile's Law of Food Labeling and Advertisement.

methodsLongitudinal study of 349 children from the Food Environment Chilean Cohort (FECHIC) and 294 adolescents from the Growth and Obesity Cohort Study (GOCS). Data were from single 24-hour dietary recalls collected from 2016 to 2019. Fixed-effects models stratified by school, home, and other locations compared nutrient consumption in each year to consumption at the pre-policy 2016 baseline. Nutrient intakes are expressed as percent of total energy.

resultsCompared to 2016 (pre-policy), total sugars consumed by children at school decreased 4.5 [-8.0, -0.9] percentage points (pp) and 11.8 [-15.4, -8.3] pp in 2018 and 2019 respectively. In 2019, children's saturated fats and sodium intake at school also decreased (1.1 [-1.9, -0.2] pp and 10.3 [-18.1, -2.5] mg/100 kcal respectively). Likewise, in adolescents, total sugars and saturated fats consumed at school decreased in 2018 (5.3 [-8.4, -2.2] pp and 1.5 [-2.7, -0.3] pp respectively). However, consumption of key nutrients of concern at other locations increased after implementation of the policy.

conclusionsAfter initial implementation of Chile's Labeling Law, intake of most key nutrients of concern significantly declined at school. However, we found evidence of compensatory behavior in out-of-school settings. Further research is needed to evaluate what other actions are needed to impact overall diets in the long term both at schools and out of school.

Indexed as

AdvertisingDietEnergy IntakeFeeding BehaviorFood LabelingAdolescentChileCohort StudiesEatingHumansLongitudinal StudiesSodiumSugarsSodiumSugarsAdolescentsChildrenFood environmentFood labelingSchool food

Identifiers

PMID37016430
PMCPMC10074676

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.