Protein co-ingestion strongly increases postprandial insulin secretion in type 2 diabetes patients

Journal article


Manders, Ralph J. F., Hansen, Dominique, Zorenc, Antoine H. G., Dendale, Paul, Kloek, Joris, Saris, Wim H. M. and van Loon, Luc J. C.. (2014). Protein co-ingestion strongly increases postprandial insulin secretion in type 2 diabetes patients. Journal of Medicinal Food. 17(7), pp. 758 - 763. https://doi.org/10.1089/jmf.2012.0294
AuthorsManders, Ralph J. F., Hansen, Dominique, Zorenc, Antoine H. G., Dendale, Paul, Kloek, Joris, Saris, Wim H. M. and van Loon, Luc J. C.
Abstract

The capacity of nutritional protein to induce endogenous insulin secretion has been well established. However, it is not known whether such a response is applicable in a diverse population of type 2 diabetes patients. The aim of the present study was to assess the impact of co-ingesting either intact or hydrolyzed protein with carbohydrate on postprandial plasma insulin and glucose responses in type 2 diabetes patients. Sixty longstanding, male, type 2 diabetes patients participated in a study in which we determined postprandial plasma insulin and glucose responses after ingesting a single bolus of carbohydrate ( 0.7 g/kg: CHO ) with or without an intact protein ( 0.3 g/kg: PRO ) or its hydrolysate ( 0.3 g/kg: PROh ). Results showed that protein co-ingestion strongly increased postprandial insulin release, with the insulin response +99±41 and +110±10% greater in the CHO+PRO and CHO+PROh experiments when compared with the CHO experiment. The insulinotropic properties of protein co-ingestion were evident in nearly all patients, with 58 out of 60 patients responding > 10% when compared with the insulin response following carbohydrate ingestion only ( CHO ). The concomitant plasma glucose responses were 22±32 and 23±36% lower in the CHO+PRO and CHO+PROh experiments, respectively. We conclude that protein co-ingestion represents an effective dietary strategy to strongly augment postprandial insulin release and attenuate the postprandial rise in glucose concentration in type 2 diabetes patients.

Keywordsglucose; insulin; milk protein; protein hydrolysates
Year2014
JournalJournal of Medicinal Food
Journal citation17 (7), pp. 758 - 763
PublisherMary Ann Liebert, Inc.
ISSN1096-620X
Digital Object Identifier (DOI)https://doi.org/10.1089/jmf.2012.0294
Scopus EID2-s2.0-84904285971
Page range758 - 763
Research GroupMary MacKillop Institute for Health Research
Publisher's version
File Access Level
Controlled
Place of publicationUnited States
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