Advanced search
Publication Cover
Nutritional Neuroscience
An International Journal on Nutrition, Diet and Nervous System
Volume 20, 2017 - Issue 10
Submit an article Journal homepage
871
Views
37
CrossRef citations to date
0
Altmetric
Original Articles

Cerebrovascular and cognitive benefits of high-oleic peanut consumption in healthy overweight middle-aged adults

Jayne A. BarbourAlliance for Research in Exercise, Nutrition and Activity (ARENA), University of South Australia, GPO Box 2471, Adelaide5001, SA, AustraliaCorrespondence[email protected]
ORCID Iconhttp://orcid.org/0000-0003-1051-5000
ORCID Icon,
Peter R. C. HoweAlliance for Research in Exercise, Nutrition and Activity (ARENA), University of South Australia, GPO Box 2471, Adelaide5001, SA, Australia;Clinical Nutrition Research Centre, University of Newcastle, Callaghan2308, NSW, AustraliaORCID Iconhttp://orcid.org/0000-0001-6546-7742
ORCID Icon,
Jonathan D. BuckleyAlliance for Research in Exercise, Nutrition and Activity (ARENA), University of South Australia, GPO Box 2471, Adelaide5001, SA, AustraliaORCID Iconhttp://orcid.org/0000-0003-0298-2186
ORCID Icon,
Janet BryanDepartment of Psychology, Social Work and Social Policy, University of South Australia, GPO Box 2471, Adelaide5001, SA, AustraliaORCID Iconhttp://orcid.org/0000-0002-1628-1279
ORCID Icon &
Alison M. CoatesAlliance for Research in Exercise, Nutrition and Activity (ARENA), University of South Australia, GPO Box 2471, Adelaide5001, SA, AustraliaORCID Iconhttp://orcid.org/0000-0003-1031-2545
ORCID Icon
Pages 555-562 | Published online: 07 Jul 2016
 
Sample our Behavioral Sciences journals, sign in here to start your access, latest two full volumes FREE to you for 14 days

Abstract

Objective: Peanuts contain bioactive nutrients beneficial for vascular function. This study investigated whether consumption of unsalted peanuts (with skins) would enhance cerebrovascular perfusion and cognitive performance.

Method: In a randomized crossover trial, 61 volunteers (29 males/32 females, 65 ± 7 years, BMI 31 ± 4 kg/m2) consumed their habitual diet ± high-oleic peanuts (56–84 g/day), each for 12 weeks. Nutrient intakes, vascular and cognitive function were assessed at baseline and at the end of each 12-week phase. Differences between the ends of each phase were compared by general linear repeated measures ANOVA controlling for baseline. Pearson's correlation analyses determined relationships between differences in cerebrovascular reactivity (CVR) and cognitive function.

Results: Intakes of bioactive nutrients increased during the peanut phase. CVR was 5% greater in the left middle cerebral artery (MCA) and 7% greater in the right MCA. Small artery elasticity was 10% greater after peanut consumption; large artery elasticity and blood pressure did not differ between phases. Measures of short-term memory, verbal fluency, and processing speed were also higher following the peanut phase; other cognitive measures did not change. Differences in CVR in the left MCA correlated with differences in delayed memory and recognition.

Discussion: Regular peanut consumption improved cerebrovascular and cognitive function; increased intakes of bioactive nutrients may have mediated these improvements.

This clinical trial was registered with the Australian Clinical Trials Registry (ACTRN 12612000192886).

Log in via your institution

Access through your institution

Log in to Taylor & Francis Online

Restore content access

Restore content access for purchases made as guest
Purchase options * Save for later

PDF download + Online access

  • 48 hours access to article PDF & online version
  • Article PDF can be downloaded
  • Article PDF can be printed
USD 65.00 Add to cart

Issue Purchase

  • 30 days online access to complete issue
  • Article PDFs can be downloaded
  • Article PDFs can be printed
USD 273.00 Add to cart

* Local tax will be added as applicable

Related Research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.