ArticleEuropean journal of nutrition2026
Can vegetables intake pattern mediate the relationship between fast-food and cognitive performance in adolescents? The Cogni-Action project.
Article in European journal of nutrition, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionVegetables play a crucial role in mitigating metabolic disorders. However, no studies have investigated the potential mediating role of vegetable intake in the inverse association between fast-food intake and cognitive performance in adolescents. Furthermore, sex differences in this mediation pathway remain unclear.
methodsThis cross-sectional study included 1296 Chilean adolescents (50% girls; 10–14 years old). Cognitive functioning was assessed using eight cognitive tasks, from which a Global Cognitive Performance (GCP) score and four cognitive domains were derived: cognitive flexibility (CF), inhibitory control (IC), working memory (WM), and fluid reasoning (FR), using principal component analysis. Vegetable and fast-food intake were evaluated using the Mediterranean Diet Quality Index questionnaire. Mediation analyses were conducted using a Generalized Linear Model with 5000 bootstrapped samples.
resultsFast-food consumption was inversely associated with cognitive performance (r = -0.140; p < .001). Considering full sample, vegetable mediated this relationship for GCP (β = -0.29; 95%CI -0.42, -0.18), CF (β = -0.20; 95%CI -0.32, -0.08), WM (β = -0.18; 95%CI -0.32, -0.06), and FR (β = -0.12; 95%CI -0.24, -0.00). No significant mediation was found for IC (p = .228). In boys, mediation was observed for GCP (β = -0.29; 95%CI -0.49, -0.12) and WM (β = -0.23; 95%CI -0.46, -0.04), while no significant mediation was found for CF, IC, or FR. For girls, mediation was found for GCP (β = -0.28; 95%CI -0.46, -0.13) and CF (β = -0.21; 95%CI -0.39, -0.06), whereas no significant mediation was found for IC, WM, and FR.
conclusionThese findings suggest that consuming at least two servings of vegetables per day may play a mediating role in the inverse association between fast-food consumption and cognitive performance, highlighting sex differences across cognitive domains.
Indexed as
Identifiers
41524951What OpenQuestion holds
Registered trials
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.