Acute effects of a dietary non-starch polysaccharide supplement on cognitive performance in healthy middle-aged adults

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dc.contributor.authorBest, T.
dc.contributor.authorHowe, P.
dc.contributor.authorBryan, J.
dc.contributor.authorBuckley, J.
dc.contributor.authorScholey, A.
dc.date.issued2015
dc.descriptionPublished online: 03 Jan 2014.
dc.description.abstractObjective: Certain plant polysaccharides may provide psychological health benefits. The aim of this study was to evaluate whether they can acutely improve mood and cognitive function. Method: In a randomized, double-blind, placebo-controlled, between subjects design trial, 73 middle-aged adults consumed 4 g of a proprietary mixture of non-starch polysaccharides (NSPs) (Ambrotose® complex), a rice flour placebo, or a sucrose control. Participants completed testing at baseline and 30 minutes postconsumption. Acute effects of consumption on mood, cognition, and blood glucose were evaluated during mental tests designed to induce mental fatigue. Results: Significant improvement in recognition and working memory performance was observed in the group that consumed NSP compared with placebo or sucrose. Improvements in memory performance following NSP intake were independent of changes in blood glucose. Discussion: This is the first report of acute behavioural improvement following plant polysaccharide intake in healthy middle-aged adults under conditions of mental fatigue. The findings suggest that certain NSP may enhance memory performance through mechanisms other than elevated blood glucose.
dc.description.statementofresponsibilityTalitha Best, Peter Howe, Janet Bryan, Jonathan Buckley, Andrew Scholey
dc.identifier.citationNutritional Neuroscience, 2015; 18(2):76-86
dc.identifier.doi10.1179/1476830513Y.0000000101
dc.identifier.issn1028-415X
dc.identifier.issn1476-8305
dc.identifier.orcidHowe, P. [0000-0001-6546-7742]
dc.identifier.urihttp://hdl.handle.net/2440/113663
dc.language.isoen
dc.publisherTaylor & Francis
dc.relation.granthttp://purl.org/au-research/grants/arc/DP1093834
dc.rights© W. S. Maney & Son Ltd 2015
dc.source.urihttps://doi.org/10.1179/1476830513y.0000000101
dc.subjectMemory; cognition; middle-aged adults; saccharides; arabinogalactan; plant polysaccharides; dietary polysaccharides
dc.titleAcute effects of a dietary non-starch polysaccharide supplement on cognitive performance in healthy middle-aged adults
dc.typeJournal article
pubs.publication-statusPublished

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