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Flavonoid-rich orange juice is associated with acute improvements in cognitive function in healthy middle-aged males

Alharbi, M. H., Lamport, D. J., Dodd, G. F., Saunders, C., Harkness, L., Butler, L. T. and Spencer, J. P. E. (2016) Flavonoid-rich orange juice is associated with acute improvements in cognitive function in healthy middle-aged males. European Journal of Nutrition, 55 (6). pp. 2021-2029. ISSN 1436-6215

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To link to this item DOI: 10.1007/s00394-015-1016-9

Abstract/Summary

Purpose: Epidemiological evidence suggests that chronic consumption of fruit based flavonoids is associated with cognitive benefits, however, the acute effects of flavonoid rich drinks on cognitive function in the immediate postprandial period requires examination. The objective was to investigate whether consumption of flavonoid rich orange juice is associated with acute cognitive benefits over six hours in healthy middle-aged adults. Methods: Males aged 30-65 consumed a 240ml flavonoid rich (FR) orange juice (272mg) and a calorie matched placebo in a randomized, double-blind, counterbalanced order on two days separated by a two week washout. Cognitive function and subjective mood were assessed at baseline (prior to drink consumption) and 2hrs and 6hrs post consumption. The cognitive battery included eight individual cognitive tests. A standardized breakfast was consumed prior to the baseline measures, and a standardized lunch was consumed 3hrs post drink consumption. Results: Change from baseline analysis revealed that performance on tests of executive function and psychomotor speed was significantly better following the FR drink compared to the placebo. The effects for objective cognitive function were supported by significant benefits for subjective alertness following the FR drink relative to the placebo. Conclusions: These data demonstrate that consumption of flavonoid rich orange juice can acutely enhance objective and subjective cognition over the course of six hours in healthy middle-aged adults.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Psychology and Clinical Language Sciences > Department of Psychology
Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences > Human Nutrition Research Group
ID Code:42082
Publisher:Springer

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