Evidence map›Paper›PMID 34288165›Full record

ArticleClinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology2021

Poor understanding of allergen labelling by allergic and non-allergic consumers.

Bregje C Holleman, Harmieke van Os-Medendorp, Huub van den Bergh, Liselotte M van Dijk, Yvette F M Linders, W Marty Blom, Kitty C M Verhoeckx, Anouska Michelsen-Huisman, Geert F Houben, André C Knulst and 1 more

Abstract read
In one paragraph

Article in Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

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

  1. Guideline
  2. Online and Mobile Application Diet Information for Food Chemical Intolerances: An Evaluation of the Content, Quality and Health Literacy Demand.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2026
    Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Precautionary Allergen Labeling: Avoidance for All?Current allergy and asthma reports · 2024
    Review
  9. Article
  10. Historical and social science perspectives on food allergy.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2023
    Review
  11. "Vegan" and "plant-based" claims: risk implications for milk- and egg-allergic consumers in Canada.Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology · 2023
    Article
  12. Article
  13. Management of IgE-mediated food allergy in the 21st century.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2023
    Review
  14. Article
  15. Article
  16. Poor understanding of allergen labelling by allergic and non-allergic consumers.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2021
    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

11 authors.

Bregje C HollemanUtrecht Institute for Linguistics OTS, Utrecht University, Utrecht, The Netherlands.ORCID 0000-0003-2208-8018
Harmieke van Os-MedendorpDepartment of Dermatology/ Allergology and Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
Huub van den BerghUtrecht Institute for Linguistics OTS, Utrecht University, Utrecht, The Netherlands.
Liselotte M van DijkUtrecht Institute for Linguistics OTS, Utrecht University, Utrecht, The Netherlands.ORCID 0000-0002-5747-7163
Yvette F M LindersUtrecht Institute for Linguistics OTS, Utrecht University, Utrecht, The Netherlands.
W Marty BlomDepartment of Dermatology/ Allergology and Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.ORCID 0000-0002-6853-0900
Kitty C M VerhoeckxDepartment of Dermatology/ Allergology and Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.ORCID 0000-0002-6557-3198
Anouska Michelsen-HuismanDepartment of Dermatology/ Allergology and Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
Geert F HoubenDepartment of Dermatology/ Allergology and Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
André C KnulstDepartment of Dermatology/ Allergology and Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
Leo R LentzUtrecht Institute for Linguistics OTS, Utrecht University, Utrecht, The Netherlands.

Funding

Utrecht University Future Food
6 · The paper itself

Abstract

backgroundUnderstanding consumers' interpretation of allergy information is crucial for effective food safety policies. We evaluated consumer understanding of allergy information on foods in controlled, experimental studies.

methodUsing 18 packaged foods, we evaluated consumer understanding of information about allergens in two experiments: First, a comparison of foods with no stated allergen versus allergen as a stated ingredient versus a precautionary allergen label (PAL); second, a comparison of three common variants of PAL. In each experiment, consumers with and without self-reported food allergy were asked to estimate the risk of allergic reaction and to rate the comprehensibility of the allergen information. In the second experiment, consumers were also asked which form of PAL they preferred.

resultsRisk of reaction was assessed as high and low for foods with the allergen stated as ingredient, or without any mention of allergen. However, risk assessment for PAL varied and was judged as higher by non-allergic than allergic participants (82% vs. 58%, p < .001). Understanding of risk associated with PAL also varied by health literacy (p < .001). Both allergic and non-allergic consumers judged all forms of allergy information to be unclear, especially products with no allergy information for non-allergic consumers. Products with a 'Produced in a Factory' PAL were perceived as less risky than 'May contain' or 'Traces of' PALs (p < .001), less than 40% of participants judged PAL information to be comprehensible, and participants preferred 'May contain' over the other PALs.

conclusionBoth allergic and non-allergic consumers find allergen information difficult to interpret on packaged foods and misunderstand PAL, incorrectly distinguishing different risk levels for different PAL wording. Clearer allergy information guidelines are called for, and the use of only one PAL wording is recommended.

Indexed as

AllergensFood HypersensitivityFoodFood LabelingFood SafetyHumansAllergens

Identifiers

PMID34288165
PMCPMC8519062

What OpenQuestion holds

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Registered trials

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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.