Evidence map›Paper›PMID 34684580›Full record

ArticleNutrients2021

Higher Habitual Nuts Consumption Is Associated with Better Cognitive Function among Qatari Adults.

Hajer Nafea, Omnia Abdelmegid, Sara Qaddourah, Zainab Abdulwahab, Joyce Moawad, Zumin Shi

Abstract read
In one paragraph

Article in Nutrients, 2021. 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
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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

6 authors.

Hajer NafeaHuman Nutrition Department, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar.
Omnia AbdelmegidHuman Nutrition Department, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar.
Sara QaddourahHuman Nutrition Department, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar.
Zainab AbdulwahabHuman Nutrition Department, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar.
Joyce MoawadHuman Nutrition Department, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar.
Zumin ShiHuman Nutrition Department, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar.ORCID 0000-0002-3099-3299

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The association between nuts intake and cognitive function is inconclusive. We aimed to investigate the association between habitual nuts consumption and cognition among Qatari adults. Data from 1000 participants aged >20 years who attended Qatar Biobank (QBB) were used. Nuts consumption was assessed by a food frequency questionnaire (FFQ). Blood samples were measured for magnesium, lipids and glucose. Mean reaction time (MRT) was used as an indicator of cognitive function. Linear regression was used to assess the association. A total of 21.1% of the participants reported consuming nuts ≥4-6 times/week (high consumption) while 40.2% reported consuming ≤1 time/month (low consumption). The mean MRT was 715.6 milliseconds (SD 204.1). An inverse association was found between nuts consumption and MRT. Compared to those with a low consumption, high consumption of nuts had a regression coefficient of -36.9 (95% CI -68.1 to -5.8) after adjusting for sociodemographic and lifestyle factors. The inverse association between nuts and MRT was mainly seen among those >50 years. There was an interaction between nuts consumption and hypertension. The association between nuts consumption and MRT was not mediated by hypertension, diabetes, or serum magnesium. Habitual higher consumption of nuts is positively associated with cognitive function, especially among old adults.

Indexed as

Feeding BehaviorNutsAdultBiological Specimen BanksCognitionDiabetes MellitusEatingFemaleHumansHypertensionMaleQatarReaction Timeadultscognitionmean reaction timenuts consumptionQatar Biobank

Identifiers

PMID34684580
PMCPMC8538871

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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.