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Acute differential effects of dietary protein quality on postprandial lipemia in obese non-diabetic subjects

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Authors:
  • Holmer-Jensen, Jens ;
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    Department of Endocrinology and Metabolism, MEA, Aarhus University Hospital, THG, Aarhus
  • Mortensen, Lene Sundahl ;
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    Department of Endocrinology and Metabolism, MEA, Aarhus University Hospital, THG, Aarhus
  • Astrup, Arne ;
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    Orcid logo0000-0001-8968-8996
    Department of Nutrition, Exercise and Sports, Department of Nutrition, Exercise and Sports, Faculty of Science, Københavns Universitet
  • de Vrese, Michael ;
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    Federal Research Institute for Nutrion and Food, Institute for Physiology and Biochemistry of Nutrition, Kiel
  • Holst, Jens Juul ;
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    Orcid logo0000-0001-6853-3805
    Endocrinology and Metabolism, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, Københavns Universitet
  • Thomsen, Claus ;
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    Department of Endocrinology and Metabolism, MEA, Aarhus University Hospital, THG, Aarhus
  • Hermansen, Kjeld
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    Department of Endocrinology and Metabolism, MEA, Aarhus University Hospital, THG, Aarhus
DOI:
10.1016/j.nutres.2012.11.004
Abstract:
Non-fasting triglyceridemia is much closer associated to cardiovascular risk compared to fasting triglyceridemia. We hypothesized that there would be acute differential effects of four common dietary proteins (cod protein, whey isolate, gluten, and casein) on postprandial lipemia in obese non-diabetic subjects. To test the hypothesis we conducted a randomized, acute clinical intervention study with crossover design. We supplemented a fat rich mixed meal with one of four dietary proteins i.e. cod protein, whey protein, gluten or casein. Eleven obese non-diabetic subjects (age: 40-68, body mass index: 30.3-42.0 kg/m(2)) participated and blood samples were drawn in the 8-h postprandial period. Supplementation of a fat rich mixed meal with whey protein caused lower postprandial lipemia (P = .048) compared to supplementation with cod protein and gluten. This was primarily due to lower triglyceride concentration in the chylomicron rich fraction (P = .0293). Thus, we have demonstrated acute differential effects on postprandial metabolism of four dietary proteins supplemented to a fat rich mixed meal in obese non-diabetic subjects. Supplementation with whey protein caused lower postprandial lipemia compared to supplementation with cod and gluten. As postprandial lipemia is closely correlated to cardiovascular disease, long-term dietary supplementation with whey protein may prove beneficial in preventing cardiovascular disease in obese non-diabetic subjects.
Type:
Journal article
Language:
English
Published in:
Nutrition Research, 2013, Vol 33, Issue 1, p. 34-40
Main Research Area:
Science/technology
Publication Status:
Published
Review type:
Peer Review
Submission year:
2013
Scientific Level:
Scientific
ID:
235264859

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