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Food-based anthocyanin intake and cognitive outcomes in human intervention trials: a systematic review

Citation

Kent, K and Charlton, E and Netzel, M and Fanning, K, Food-based anthocyanin intake and cognitive outcomes in human intervention trials: a systematic review, Journal of Human Nutrition and Dietetics, 30, (3) pp. 260-274. ISSN 0952-3871 (2017) [Refereed Article]


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Copyright Statement

Copyright 2016 The British Dietetic Association Ltd

DOI: doi:10.1111/jhn.12431

Abstract

Background: Preclinical evidence suggests that the anthocyanins, which comprise a subclass of dietary flavonoids providing the purple and red pigmentation in plant-based foods, may have a beneficial impact on cognitive outcomes.

Methods: A systematic review was conducted to identify the published literature on food-based anthocyanin consumption and cognitive outcomes in human intervention trials. The literature search followed PRISMA guidelines and included six databases, as well as additional hand searching. Results: Seven studies were included in this review, comprising acute trials (n = 4) and longer-term (n= 3) interventions that assessed multiple cognitive outcomes in children, adults and older adults with cognitive impairment. Six of seven studies reported improvements in either a single, or multiple, cognitive outcomes, including verbal learning and memory, after anthocyanin-rich food consumption. As a result of methodological limitations and the large clinical and methodological diversity of the studies, the pooling of data for quantitative analysis was not feasible.

Conclusions: The impact of food-based anthocyanin consumption on both acute and long-term cognition appears promising. However, adequately powered studies that include sensitive cognitive tasks are needed to confirm these findings and allow the translation of research into dietary messages.

Item Details

Item Type:Refereed Article
Keywords:flavonoid, anthocyanin, cognition
Research Division:Medical and Health Sciences
Research Group:Nutrition and Dietetics
Research Field:Nutrition and Dietetics not elsewhere classified
Objective Division:Health
Objective Group:Public Health (excl. Specific Population Health)
Objective Field:Nutrition
Author:Kent, K (Dr Katherine Kent)
ID Code:112038
Year Published:2017 (online first 2016)
Web of Science® Times Cited:1
Deposited By:Centre for Rural Health
Deposited On:2016-10-21
Last Modified:2017-11-20
Downloads:0

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