Higher versus lower nut consumption and changes in cognitive performance over two years in a population at risk of cognitive decline: a cohort study.
aging
cognition
cognitive decline
nuts
older people
unsaturated fatty acids
Journal
The American journal of clinical nutrition
ISSN: 1938-3207
Titre abrégé: Am J Clin Nutr
Pays: United States
ID NLM: 0376027
Informations de publication
Date de publication:
08 2023
08 2023
Historique:
received:
16
03
2023
revised:
24
05
2023
accepted:
30
05
2023
medline:
7
8
2023
pubmed:
4
6
2023
entrez:
3
6
2023
Statut:
ppublish
Résumé
Tree nuts and peanuts (henceforth, nuts) are nutrient-dense foods rich in neuroprotective components; thus, their consumption could benefit cognitive health. However, evidence to date is limited and inconsistent regarding the potential benefits of nuts for cognitive function. To prospectively evaluate the association between nut consumption and 2-y changes in cognitive performance in older adults at cognitive decline risk. A total of 6,630 participants aged 55 to 75 y (mean age 65.0±4.9 y, 48.4% women) with overweight/obesity and metabolic syndrome completed a validated semi-quantitative food frequency questionnaire and a comprehensive battery of neuropsychological tests at baseline and a 2-y follow-up. Composite cognitive scores were used to assess global, general, attention, and executive function domains. Nut consumption was categorized as <1, ≥1 to <3, ≥3 to <7, and ≥7 servings/wk (1 serving=30 g). Multivariable-adjusted linear regression models were fitted to assess associations between baseline nut consumption and 2-y cognitive changes. Nut consumption was positively associated with 2-y changes in general cognitive function (P-trend <0.001). Compared with participants consuming <1 serving/wk of nuts, those categorized as consuming ≥3 to <7 and ≥7 servings/wk showed more favorable changes in general cognitive performance (β z-score [95% CI] = 0.06 [0.00,0.12] and 0.13 [0.06,0.20], respectively). No significant changes were observed in the multivariable-adjusted models for other cognitive domains assessed. Frequent nut consumption was associated with a smaller decline in general cognitive performance over 2 y in older adults at risk of cognitive decline. Randomized clinical trials to verify our findings are warranted.
Sections du résumé
BACKGROUND
Tree nuts and peanuts (henceforth, nuts) are nutrient-dense foods rich in neuroprotective components; thus, their consumption could benefit cognitive health. However, evidence to date is limited and inconsistent regarding the potential benefits of nuts for cognitive function.
OBJECTIVE
To prospectively evaluate the association between nut consumption and 2-y changes in cognitive performance in older adults at cognitive decline risk.
METHODS
A total of 6,630 participants aged 55 to 75 y (mean age 65.0±4.9 y, 48.4% women) with overweight/obesity and metabolic syndrome completed a validated semi-quantitative food frequency questionnaire and a comprehensive battery of neuropsychological tests at baseline and a 2-y follow-up. Composite cognitive scores were used to assess global, general, attention, and executive function domains. Nut consumption was categorized as <1, ≥1 to <3, ≥3 to <7, and ≥7 servings/wk (1 serving=30 g). Multivariable-adjusted linear regression models were fitted to assess associations between baseline nut consumption and 2-y cognitive changes.
RESULTS
Nut consumption was positively associated with 2-y changes in general cognitive function (P-trend <0.001). Compared with participants consuming <1 serving/wk of nuts, those categorized as consuming ≥3 to <7 and ≥7 servings/wk showed more favorable changes in general cognitive performance (β z-score [95% CI] = 0.06 [0.00,0.12] and 0.13 [0.06,0.20], respectively). No significant changes were observed in the multivariable-adjusted models for other cognitive domains assessed.
CONCLUSION
Frequent nut consumption was associated with a smaller decline in general cognitive performance over 2 y in older adults at risk of cognitive decline. Randomized clinical trials to verify our findings are warranted.
Identifiants
pubmed: 37269908
pii: S0002-9165(23)65960-X
doi: 10.1016/j.ajcnut.2023.05.032
pmc: PMC10447472
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
360-368Subventions
Organisme : CIHR
Pays : Canada
Informations de copyright
Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.
Références
Br J Nutr. 2010 Jun;103(12):1808-16
pubmed: 20102675
Lancet Neurol. 2018 Nov;17(11):1006-1015
pubmed: 30244829
Nutrients. 2020 Nov 12;12(11):
pubmed: 33198235
Adv Nutr. 2019 Nov 1;10(Suppl_4):S422-S436
pubmed: 31728502
Pharmacol Res. 2016 Sep;111:272-282
pubmed: 27329332
JAMA. 2019 Oct 15;322(15):1486-1499
pubmed: 31613346
Circulation. 2009 Oct 20;120(16):1640-5
pubmed: 19805654
Lancet Planet Health. 2022 Sep;6(9):e749-e759
pubmed: 36087605
J Nutr Health Aging. 2014 May;18(5):496-502
pubmed: 24886736
Nutrients. 2018 Dec 06;10(12):
pubmed: 30563231
J Neurol Neurosurg Psychiatry. 2013 Dec;84(12):1318-25
pubmed: 23670794
PLoS One. 2013;8(2):e57367
pubmed: 23460844
Am J Clin Nutr. 2020 Mar 1;111(3):590-600
pubmed: 31912155
Am J Clin Nutr. 2021 Apr 6;113(4):960-971
pubmed: 33471083
Front Aging Neurosci. 2022 Apr 13;14:816443
pubmed: 35493926
Adv Nutr. 2021 Jun 1;12(3):777-792
pubmed: 33330927
JAMA Intern Med. 2015 Jul;175(7):1094-1103
pubmed: 25961184
Prog Cardiovasc Dis. 2018 May - Jun;61(1):33-37
pubmed: 29800597
Nutr Rev. 2022 Sep 5;80(10):2076-2088
pubmed: 35389470
J Am Coll Cardiol. 2020 Nov 10;76(19):2282-2284
pubmed: 33153588
Nutr Neurosci. 2022 Jul;25(7):1466-1476
pubmed: 33448906
Pharmacol Res. 2018 Mar;129:115-127
pubmed: 29208493
Diabetes Care. 2019 May;42(5):777-788
pubmed: 30389673
Nutr Rev. 2019 Oct 1;77(10):691-709
pubmed: 31361320
Adv Nutr. 2022 Oct 2;13(5):1584-1602
pubmed: 35170723
Arch Clin Neuropsychol. 2012 May;27(3):248-61
pubmed: 22382384
Nutrients. 2020 Apr 23;12(4):
pubmed: 32340150
Nutrients. 2023 Feb 16;15(4):
pubmed: 36839359
Mol Nutr Food Res. 2020 Jan;64(2):e1900532
pubmed: 31755209
Adv Nutr. 2019 Nov 1;10(6):1040-1065
pubmed: 31209456
Nutr Neurosci. 2017 Dec;20(10):555-562
pubmed: 27386745
Nutr Rev. 2022 Apr 8;80(5):1129-1159
pubmed: 34392373
Am J Clin Nutr. 2015 May;101(5):966-82
pubmed: 25809855
Lancet. 2020 Aug 8;396(10248):413-446
pubmed: 32738937
J Nutr Health Aging. 2019;23(2):211-216
pubmed: 30697633
Int J Environ Res Public Health. 2020 Dec 07;17(23):
pubmed: 33297407
J Nutr. 2020 Dec 10;150(12):3161-3170
pubmed: 33300039
Br J Nutr. 2011 Sep;106(5):752-61
pubmed: 21477405
Nutrients. 2021 Sep 19;13(9):
pubmed: 34579146
Obes Rev. 2021 Nov;22(11):e13330
pubmed: 34494363
Diabetes Care. 2010 Sep;33(9):1964-9
pubmed: 20519662
Am J Clin Nutr. 2019 Feb 1;109(2):297-314
pubmed: 30722007
Public Health Nutr. 2021 May;24(7):1741-1752
pubmed: 32618237
Age Ageing. 2021 Jun 28;50(4):1215-1221
pubmed: 33333555