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Effects of whey proteins on glycaemia and insulinaemia to an oral glucose load in healthy adults; a dose-response study.
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- Gunnerud, Ulrika (author)
- Lund University,Lunds universitet,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH
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- Östman, Elin (author)
- Lund University,Lunds universitet,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH
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- Björck, Inger (author)
- Lund University,Lunds universitet,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH
- (creator_code:org_t)
- 2013-05-01
- 2013
- English.
- In: European Journal of Clinical Nutrition. - : Springer Science and Business Media LLC. - 1476-5640 .- 0954-3007. ; 67:7, s. 749-753
- Journal article (peer-reviewed)
Abstract
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- Background/Objectives:Whey proteins have insulinogenic properties and the effect appears to be mediated from a postprandial plasma amino-acid (AA) response. The aim was to study the possible dose-response relationship between whey intake and glycaemic-, insulinaemic- and plasma AA responses.Subjects/Methods:Twelve healthy volunteers participated in the study. They were provided three whey protein drinks, containing 4.5, 9 or 18 g protein as breakfast meals in random order. All meals contained 25 g available carbohydrates (glucose). The same amount of glucose in water was used as reference.Results:Linear dose-response relations were found between whey protein intake and postprandial glycaemia, insulinaemia and plasma AAs. The two highest doses, 18 g and 9 g, significantly reduced postprandial glycaemia (incremental area under the curve (iAUC) 0-120 min; P< 0.05). The 18 g dose significantly increased the insulin response (iAUC 0-120 min; P<0.05). All measured plasma AAs (15 in total), except glutamic acid, responded in a dose-dependent way, and the 9 and 18 g doses resulted in significantly higher plasma levels of AAs compared with the reference.Conclusions:Whey protein affects glycaemia, insulinaemia and plasma AAs to a glucose load in a dose-dependent manner. Comparatively low doses of whey protein (9 g) reduced postprandial glycaemia significantly when added to a carbohydrate-rich meal.European Journal of Clinical Nutrition advance online publication, 1 May 2013; doi:10.1038/ejcn.2013.88.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Näringslära (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Nutrition and Dietetics (hsv//eng)
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