A study of glycaemic effects following acute anthocyanin-rich blueberry supplementation in healthy young adults

Bell, L. ORCID: https://orcid.org/0000-0003-0677-021X, Lamport, D. J. ORCID: https://orcid.org/0000-0002-4592-0439, Butler, L. T. and Williams, C. M. ORCID: https://orcid.org/0000-0003-4452-671X (2017) A study of glycaemic effects following acute anthocyanin-rich blueberry supplementation in healthy young adults. Food & Function, 8 (9). pp. 3104-3110. ISSN 2042-650X doi: 10.1039/c7fo00724h

Abstract/Summary

The postprandial response to ingested carbohydrate is recognised as a marker of metabolic health. Postprandial hyperglycaemia is observed in type 2 diabetes mellitus and is a significant risk factor for cardiovascular disease. Cognitive deficits are also associated with type 2 diabetes. Therefore interventions which moderate postprandial glucose profiles are desirable. Here we investigated the impact of anthocyanin-rich wild blueberries on postprandial glucose response. Seventeen healthy young adults consumed a range of doses of freeze-dried wild blueberry powder, in smoothie form, in both sugar-matched and no-added-sugar conditions. Plasma glucose was determined by a capillary sampling method at baseline and at regular intervals up to 2.5 hours postprandially. Blueberries were observed to significantly extend the postprandial glucose response beyond the period observed for a sugar-matched control, characteristic of a beneficial glycaemic response. Furthermore, blueberries were observed to reduce peak postprandial glucose levels, although statistical significance was not achieved. The findings suggest a tempering of the postprandial glucose response in the presence of anthocyanin-rich blueberry, and are discussed with reference to likely glucoregulatory mechanisms of action and their implications for cognitive and type 2 diabetes research.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/71762
Identification Number/DOI	10.1039/c7fo00724h
Refereed	Yes
Divisions	Interdisciplinary Research Centres (IDRCs) > Institute for Food, Nutrition and Health (IFNH) Life Sciences > School of Psychology and Clinical Language Sciences > Department of Psychology Life Sciences > School of Psychology and Clinical Language Sciences > Neuroscience Life Sciences > School of Psychology and Clinical Language Sciences > Nutrition and Health
Publisher	Royal Society of Chemistry
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