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Updated: Mar 13, 2026

Characterization of Metabolic Status in Nonhuman Primates with the Intravenous Glucose Tolerance Test
Published on: November 13, 2016
Glycaemic and insulinemic response to dietary carbohydrates in horses
Christine Brøkner1, Dag Austbø2, Jon A Næsset2
1Department of Veterinary Clinical and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Grønnegaardsvej 3, 1870, Frederiksberg, Denmark. christine.broekner@sund.ku.dk.
Background:
Dietary sugar and starch affect plasma glucose and insulin concentrations. Little information is available about the effect of dietary fibre on plasma glucose and insulin concentration. It is hypothesized that different dietary fibre compositions will alter post-prandial glycaemic- and insulinemic index of test meals. The objective was to measure postprandial glucose and insulin concentrations in horses fed meals of different fibre compositions.
Methods:
Blood was drawn via jugular vein puncture and the glycaemic and insulinemic index were calculated.
Results:
The meal effect on glycaemic and insulinemic response followed the expected pattern, where plasma concentrations increased after feeding and declined after peak concentration. Glycaemic index was 100 (H), 102 (OB), 102 (BB) and 106 (M) and did not differ significantly between meals. Insulinemic index was 100 (H), 140 (OB), 121 (BB) and 125 (M) and did not differ significantly between meals.
Conclusions:
In conclusion, meals containing different fibre compositions did not affect the glycaemic- and insulinemic index in horses.
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