Evidence map›Paper›PMID 39010118›Full record

ArticleThe international journal of behavioral nutrition and physical activity2024

Effects of increasing the availability of vegetarian options on main meal choices, meal offer satisfaction and liking: a pre-post analysis in a French university cafeteria.

Laura Arrazat, Claire Cambriels, Christine Le Noan, Sophie Nicklaus, Lucile Marty

Abstract read
In one paragraph

Article in The international journal of behavioral nutrition and physical activity, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

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

  1. Pooled it
  2. Trial
  3. Article
  4. Review
  5. [Choice architecture in institutional food services: strategies to promote sustainable nutrition].Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz · 2025
    Review
  6. 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

5 authors.

Laura ArrazatCentre des Sciences du Goût et de l'Alimentation, Institut Agro, CNRS, INRAE, Université de Bourgogne, Dijon, France.
Claire CambrielsCentre des Sciences du Goût et de l'Alimentation, Institut Agro, CNRS, INRAE, Université de Bourgogne, Dijon, France.
Christine Le NoanCrous Bourgogne Franche-Comté, Dijon, France.
Sophie NicklausCentre des Sciences du Goût et de l'Alimentation, Institut Agro, CNRS, INRAE, Université de Bourgogne, Dijon, France.
Lucile MartyCentre des Sciences du Goût et de l'Alimentation, Institut Agro, CNRS, INRAE, Université de Bourgogne, Dijon, France. lucile.marty@inrae.fr.

Funding

AlimH scientific division/SYALSA metaprogramme of INRAE AlimH scientific division/SYALSA metaprogramme of INRAECaisse des dépôts Caisse des dépôtsConseil régional de Bourgogne-Franche-Comté Conseil régional de Bourgogne-Franche-ComtéDijon Municipality Dijon Municipality
6 · The paper itself

Abstract

backgroundChanging the food environment is an important public health lever for encouraging sustainable food choices. Targeting the availability of vegetarian main meals served in cafeterias substantially affects food choice, but acceptability has never been assessed. We examined the effects of an availability intervention at a French university cafeteria on students' main meal choices, meal offer satisfaction and liking.

methodsA four-week controlled trial was conducted in a university cafeteria in Dijon, France. During the two-week control period, vegetarian main meals constituted 24% of the offer. In the subsequent two-week intervention period, this proportion increased to 48%, while all the other menu items remained unchanged. Students were not informed of the change. Student choices were tracked using production data, and daily paper ballots were used to assess student satisfaction with the meal offer and liking of the main meal they chose (score range [1;5]). Nutritional quality, environmental impact, and cost of production of meal choices were calculated for each lunchtime. Food waste was measured over 4 lunchtimes during control and intervention periods. An online questionnaire collected student feedback at the end of the study.

resultsDoubling availability of vegetarian main meals significantly increased the likelihood of choosing vegetarian options (OR = 2.57, 95% CI = [2.41; 2.74]). Responses of the paper ballots (n = 18,342) indicated slight improvements in meal offer satisfaction from 4.05 ± 0.92 to 4.07 ± 0.93 (p = 0.028) and in liking from 4.09 ± 0.90 to 4.13 ± 0.92 (p < 0.001) during control and intervention periods, respectively. The end-of-study questionnaire (n = 510) revealed that only 6% of students noticed a change the availability of vegetarian main meals. The intervention led to a decrease in the environmental impact of the main meals chosen, a slight decrease in nutritional quality, a slight increase in meal costs and no change in food waste.

conclusionsDoubling availability of vegetarian main meals in a university cafeteria resulted in a twofold increase in their selection, with students reporting being more satisfied and liking the main meals more during the intervention period. These results suggest that serving an equal proportion of vegetarian and nonvegetarian main meals could be considered in French university cafeterias to tackle environmental issues.

trial registrationStudy protocol and analysis plan were pre-registered on the Open Science Framework ( https://osf.io/pf3x7/ ).

Indexed as

Choice BehaviorDiet, VegetarianFood PreferencesFood ServicesMealsStudentsAdolescentAdultConsumer BehaviorFemaleFranceHumansLunchMaleNutritive ValuePersonal SatisfactionAcceptabilityAvailability interventionChoice architectureFood choicesSustainabilityUniversity cafeteriaUniversity studentsVegetarian meals

Identifiers

PMID39010118
PMCPMC11250975

What Socratic 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 Socratic graph.