Evidence map›Paper›PMID 32495843›Full record

ArticleThe Journal of nutrition2020

Caffeinated Coffee and Tea Consumption, Genetic Variation and Cognitive Function in the UK Biobank.

Marilyn C Cornelis, Sandra Weintraub, Martha Clare Morris

Abstract read
In one paragraph

Article in The Journal of nutrition, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

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

  1. Pooled it
  2. Article
  3. Habitual caffeine intake, genetics and cognitive performance.Journal of psychopharmacology (Oxford, England) · 2025
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  13. Time to Recover From Daily Caffeine Intake.Frontiers in nutrition · 2021
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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.

Marilyn C CornelisDepartment of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Sandra WeintraubMesulam Center for Cognitive Neurology and Alzheimer's Disease, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Martha Clare MorrisRush Institute for Healthy Aging, Rush University, Chicago, IL, USA.

Funding

Neuropathology CoreP30AG013854 · NIA · NORTHWESTERN UNIVERSITY AT CHICAGO · PI BIGIO, EILEEN H. · 1996 to 2020
$28.9M
Genetic Epidemiology of Caffeine and Cognitive DeclineK01AG053477 · NIA · NORTHWESTERN UNIVERSITY AT CHICAGO · PI CORNELIS, MARILYN C · 2016 to 2022
$840k
Medical Research Council MC_PC_17228Medical Research Council MC_QA137853NIA NIH HHS K01 AG053477NIA NIH HHS P30 AG013854
6 · The paper itself

Abstract

backgroundCoffee and tea are the major contributors of caffeine in the diet. Evidence points to the premise that caffeine may benefit cognition.

objectiveWe examined the associations of habitual regular coffee or tea and caffeine intake with cognitive function whilst additionally accounting for genetic variation in caffeine metabolism.

methodsWe included white participants aged 37-73 y from the UK Biobank who provided biological samples and completed touchscreen questionnaires regarding sociodemographic factors, medical history, lifestyle, and diet. Habitual caffeine-containing coffee and tea intake was self-reported in cups/day and used to estimate caffeine intake. Between 97,369 and 445,786 participants with data also completed ≥1 of 7 self-administered cognitive functioning tests using a touchscreen system (2006-2010) or on home computers (2014). Multivariable regressions were used to examine the association between coffee, tea, or caffeine intake and cognition test scores. We also tested interactions between coffee, tea, or caffeine intake and a genetic-based caffeine-metabolism score (CMS) on cognitive function.

resultsAfter multivariable adjustment, reaction time, Pairs Matching, Trail Making test B, and symbol digit substitution, performance significantly decreased with consumption of 1 or more cups of coffee (all tests P-trend < 0.0001). Tea consumption was associated with poor performance on all tests (P-trend < 0.0001). No statistically significant CMS × tea, CMS × coffee, or CMS × caffeine interactions were observed.

conclusionsOur findings, based on the participants of the UK Biobank, provide little support for habitual consumption of regular coffee or tea and caffeine in improving cognitive function. On the contrary, we observed decrements in performance with intakes of these beverages which may be a result of confounding. Whether habitual caffeine intake affects cognitive function therefore remains to be tested.

Indexed as

CoffeaGenetic VariationTeaAdultAgedApolipoproteins EBiological Specimen BanksCaffeineCognitionDatabases, FactualFemaleHumansMaleMiddle AgedRisk FactorsSurveys and QuestionnairesApoE protein, humanApolipoproteins ECaffeineTeacaffeinecoffeecognitioncohortgenotypehabitualtea

Identifiers

PMID32495843
PMCPMC7398783

What OpenQuestion holds

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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.