Effects of a mixed berry beverage on cognitive functions and cardiometabolic risk markers; A randomized cross-over study in healthy older adults

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Nilsson, AnneLund University,Lunds universitet,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Centrum för preventiv livsmedelsforskning,Universitetets särskilda verksamheter,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH,Food for Health Science Centre,University Specialised Centres (author)

Effects of a mixed berry beverage on cognitive functions and cardiometabolic risk markers; A randomized cross-over study in healthy older adults

Article/chapterEnglish2017

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2017-11-15
Public Library of Science (PLoS),2017

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LIBRIS-ID:oai:lup.lub.lu.se:afc8c6ea-9110-4fa5-bbe3-805ff1f25332
https://lup.lub.lu.se/record/afc8c6ea-9110-4fa5-bbe3-805ff1f25332URI
https://doi.org/10.1371/journal.pone.0188173DOI

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Language:English
Summary in:English

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Background: Berries and associated bioactive compounds, e.g. polyphenols and dietary fibre (DF), may have beneficial implications with respect to the metabolic syndrome, including also cognitive functions. The aim of this study was to evaluate effects on cognitive functions and cardiometabolic risk markers of 5 wk intervention with a mixture of berries, in healthy humans. Methods: Forty healthy subjects between 50–70 years old were provided a berry beverage based on a mixture of berries (150g blueberries, 50g blackcurrant, 50g elderberry, 50g lingonberries, 50g strawberry, and 100g tomatoes) or a control beverage, daily during 5 weeks in a randomized crossover design. The control beverage (water based) was matched with respect to monosaccharides, pH, and volume. Cognitive tests included tests of working memory capacity, selective attention, and psychomotor reaction time. Cardiometabolic test variables investigated were blood pressure, fasting blood concentrations of glucose, insulin, blood lipids, inflammatory markers, and markers of oxidative stress. Results: The daily amounts of total polyphenols and DF from the berry beverage were 795 mg and 11g, respectively. There were no polyphenols or DF in the control beverage. The berry intervention reduced total- and LDL cholesterol compared to baseline (both P<0.05), and in comparison to the control beverage (P<0.005 and P<0.01, respectively). The control beverage increased glucose concentrations (P<0.01) and tended to increase insulin concentrations (P = 0.064) from base line, and increased insulin concentrations in comparison to the berry beverage (P<0.05). Subjects performed better in the working memory test after the berry beverage compared to after the control beverage (P<0.05). No significant effects on the other test variables were observed. Conclusions: The improvements in cardiometabolic risk markers and cognitive performance after the berry beverage suggest preventive potential of berries with respect to type 2 diabetes, cardiovascular disease, and associated cognitive decline. Possibly the polyphenols and DF contributed to the beneficial effects. Trial registration: ClinicalTrials.gov: NCT01562392.

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Salo, IlkkaLund University,Lunds universitet,Institutionen för psykologi,Samhällsvetenskapliga institutioner och centrumbildningar,Samhällsvetenskapliga fakulteten,Department of Psychology,Departments of Administrative, Economic and Social Sciences,Faculty of Social Sciences(Swepub:lu)psyk-isa (author)
Plaza, MerichelLund University,Lunds universitet,Centrum för analys och syntes,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Centre for Analysis and Synthesis,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,University of Alcalá(Swepub:lu)orga-mrp (author)
Björck, IngerLund University,Lunds universitet,Centrum för preventiv livsmedelsforskning,Universitetets särskilda verksamheter,Food for Health Science Centre,University Specialised Centres(Swepub:lu)inl-ibj (author)
Avdelningen för livsmedel och läkemedelInstitutionen för processteknik och tillämpad biovetenskap (creator_code:org_t)

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In:PLoS ONE: Public Library of Science (PLoS)12:111932-6203

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By the author/editor: Nilsson, Anne; Salo, Ilkka; Plaza, Merichel; Björck, Inger

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MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Health Sciences; and Nutrition and Di ...

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By the university: Lund University

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