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Probiotic fruit beverages with different polyphenol profiles attenuated early insulin response
Linköping University, Department of Clinical and Experimental Medicine, Division of Neuro and Inflammation Science. Linköping University, Faculty of Medicine and Health Sciences.
Lund Univ, Sweden.
Univ Alcala De Henares, Spain; Lund Univ, Sweden.
Lund Univ, Sweden.
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2018 (English)In: Nutrition Journal, ISSN 1475-2891, E-ISSN 1475-2891, Vol. 17, article id 34Article in journal (Refereed) Published
Abstract [en]

Background: Consumption of polyphenol-rich fruits and vegetables may improve postprandial glucose and insulin levels and hence promote well-being. Previously it has been observed that consumption of bilberry decreases the postprandial insulin demand. The intention with the present study was to compare the impact of different supplements with various polyphenol profiles, on the postprandial glucose and insulin responses in healthy young adults. Methods: In a randomized, controlled, crossover study the postprandial glycemic and insulin responses were observed in eleven healthy adults after intake of five different beverages containing bilberry (European blueberry), blackcurrant, beetroot, mango and rose hip, respectively; all drinks were enriched with the same composition of fermented oatmeal and probiotics. The control was a glucose drink. The profile and content of the polyphenols in the different beverages were determined by HPLC-DAD analysis. The antioxidative capacity of the different beverages were measured by TEAC and DPPH assays. Results: Beverages containing bilberry, blackcurrant, mango or rose hip significantly attenuated the early postprandial insulin response (0-90 min), but showed no effect on glucose response. Drinks with bilberry or rose hip reduced the insulin response from the very early phase (0-30 min), and had significantly lower insulin index compared with the control. The efficiency of the bilberry and rose hip to decrease early postprandial insulin responses correlated with higher phenolic contents. Conclusions: Supplements with bilberry, blackcurrant, mango or rose hip in the tested probiotic and oatmeal enriched beverage attenuated early-phase insulin response, but had no effect on the postprandial glycemic response. The improved ability of bilberry and rose hip to lower the very early phase of insulin response seems to be due to a higher phenolic content.

Place, publisher, year, edition, pages
BIOMED CENTRAL LTD , 2018. Vol. 17, article id 34
Keywords [en]
Bilberries; Blackcurrant; Mango; Rose hip; Beetroot; Postprandial insulin response
National Category
Nutrition and Dietetics
Identifiers
URN: urn:nbn:se:liu:diva-147153DOI: 10.1186/s12937-018-0335-0ISI: 000426672500002PubMedID: 29486772OAI: oai:DiVA.org:liu-147153DiVA, id: diva2:1199486
Note

Funding Agencies|TvarLivsprogrammet; Vinnova

Available from: 2018-04-20 Created: 2018-04-20 Last updated: 2018-05-28

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