Evidence map›Paper›PMID 23599549›Full record

SynthesisBulletin of the World Health Organization2013

The effectiveness of policies for reducing dietary trans fat: a systematic review of the evidence.

Shauna M Downs, Anne Marie Thow, Stephen R Leeder

Abstract readSystematic Review
In one paragraph

Synthesis in Bulletin of the World Health Organization, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed, 8 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

80 citing papers in PubMed, 8 syntheses or guidelines pooled it.

  1. Pooled it
  2. Guideline
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Systematic review of dietary trans-fat reduction interventions.Bulletin of the World Health Organization · 2017
    Pooled it
  7. Pooled it
  8. Pooled it
  9. Article
  10. [Ecological analysis of the association between dietary factors and thyroid carcinoma incidence based on GBD 2021 data].Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2026
    Article
  11. Evaluating Trans-Fatty Acids Labelling in Packaged Foods Sold in Brazil Before and After National Policy Changes.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2026
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Costa Rica's trans-fat ban impact on cardiovascular disease: a macrosimulation study.Revista panamericana de salud publica = Pan American journal of public health · 2025
    Article
  19. [Trans fatty acids in nutrition labeling and ingredient listing of prepackaged products in Costa Rica, 2022Ácidos graxosRevista panamericana de salud publica = Pan American journal of public health · 2025
    Article
  20. Article

20 more citing papers are in PubMed but not listed here.

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

3 authors.

Shauna M DownsMenzies Centre for Health Policy, Victor Coppleson Building (D02), University of Sydney, Sydney, NSW 2006, Australia. shauna.downs@sydney.edu.au
Anne Marie Thow
Stephen R Leeder

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo systematically review evidence for the effectiveness of policies, including self-regulation, aimed at reducing industrially produced trans fatty acids (TFAs) in food.

methodsThe Medline, Embase and Cinahl databases were searched to identify peer-reviewed articles examining the effect of TFA policies. In addition, the first 20 pages of Google searches were examined for articles from the grey literature. A study was included if: (i) it was empirical and conducted in a "real-world" setting (i.e. modelling studies were excluded); (ii) it examined a TFA policy involving, for example, labelling, voluntary limits or bans; and (iii) it examined a policy's effect on TFA levels in food, people's diets, blood or breast milk.

findingsTwenty-six articles met the inclusion criteria: 5 involved voluntary self-regulation; 8, labelling alone; 4, labelling and voluntary limits; 5, local bans and 4, national bans. Overall, the TFA content of food decreased with all types of policy intervention. In general, saturated fat levels increased or decreased, depending on the product type, and total fat content remained stable. National and local bans were most effective at eliminating TFAs from the food supply, whereas mandatory TFA labelling and voluntary TFA limits had a varying degree of success, which largely depended on food category.

conclusionPolicies aimed at restricting the TFA content of food were associated with significant reductions in TFA levels, without increasing total fat content. Such policies are feasible, achievable and likely to have an effect on public health.

Indexed as

Dietary FatsFood LabelingGlobal HealthHealth PolicyHumansLipidsMilk, HumanTrans Fatty AcidsDietary FatsLipidsTrans Fatty Acids

Identifiers

PMID23599549
PMCPMC3629452

What OpenQuestion holds

Textmetadata
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.