A study of glycaemic effects following acute anthocyanin-rich blueberry supplementation in healthy young adults. Issue 9 (28th July 2017)

• Record Type: Journal Article
• Authors: Bell, L.; Lamport, D. J.; Butler, L. T.; Williams, C. M.
• Is Part Of: Food & function. Volume 8:Issue 9(2017)
• Page Start: 3104
• Page End: 3110
• Publication Date: 2017-07-28
• Subjects: Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; Nutrition -- Periodicals; 664.07
• DOI: 10.1039/c7fo00724h
• Languages: English
• ISSNs: 2042-6496

Abstract

Abstract : The postprandial response to ingested carbohydrate is recognised as a marker of metabolic health, and is altered favourably by the consumption of anthocyanin-rich wild blueberry. Abstract : 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.