Evidence map›Paper›PMID 33077024›Full record

ArticlePublic health nutrition2021

Is the world converging to a 'Western diet'?

Azzeddine Azzam

Abstract read
In one paragraph

Article in Public health nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 2 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

52 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Article
  7. Legume Consumption in Relation to Ulcerative Colitis: A Case-Control Study.Current therapeutic research, clinical and experimental · 2026
    Article
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  17. Diet and sociodemographic predictors of the double burden of malnutrition in urban Zimbabwe.African journal of primary health care & family medicine · 2025
    Article
  18. Review
  19. Observational
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

1 author.

Azzeddine AzzamDepartment of Agricultural Economics, University of Nebraska-Lincoln, 103E Filley Hall, Lincoln, NE68583-0922, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo test the nutrition transition hypothesis of global dietary convergence to a 'Western diet'.

designConsumer-waste-adjusted FAO Food Balance Sheets are used to construct for each country a Western Diet Similarity Index (WSI), expressed as a ratio of calories from animal-sourced foods, oils, fats and sweeteners to total per capita calories. β-Convergence and associated speed are estimated by growth regressions using 1992-2013 panel data. Speed of convergence, a non-linear function of income per capita, globalisation and urbanisation, determines the steady-state or long-term global WSI. The long-term global WSI is compared with the WSI of the group of countries with the highest population-weighted average WSI. The group, determined by K-means cluster analysis, consists of sixteen Western countries.

settingWorldwide.

participantsNot applicable.

resultsStrong evidence of global dietary convergence at a speed driven by income per capita, globalisation and urbanisation with a long-term WSI of 38 %. When compared with the WSI of Western countries (68 %), the hypothesis of global dietary convergence to a Western diet is rejected.

conclusionsThe nutrition transition is acting in two opposing directions. Some countries experienced positive and others negative WSI growth, slowing down the transition to a Western diet in the long run. Policies to further slowdown the transition by some countries to unhealthier dietary patterns are as important as policies to further speed up the transition by other countries to healthier ones.

Indexed as

DietDiet, WesternEnergy IntakeHumansIncomeNutritional StatusUrbanizationGlobal dietary convergenceWestern dietβ-convergence

Identifiers

PMID33077024
PMCPMC10195558

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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.