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Nutrients 2014, 6(6), 2240-2250; doi:10.3390/nu6062240

Glycemic Response of a Carbohydrate-Protein Bar with Ewe-Goat Whey

1
Department of Nutrition and Dietetics, Technological Educational Institute of Thessaly, Karditsa 43100, Greece
2
Department of Physical Education and Sport Science, University of Thessaly, Trikala 42100, Greece
3
Institute for Research and Technology Thessaly (I.RE.TE.TH), Trikala 42100, Greece
4
Department of Biochemistry-Biotechnology, University of Thessaly, Larissa 41221, Greece
5
School of Sport, Performing Arts and Leisure, Wolverhampton University, Walshall WS1 3BD, UK
*
Author to whom correspondence should be addressed.
Received: 26 March 2014 / Revised: 21 May 2014 / Accepted: 26 May 2014 / Published: 12 June 2014
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Abstract

In this study we examined the glycaemic index (GI) and glycaemic load (GL) of a functional food product, which contains ewe-goat whey protein and carbohydrates in a 1:1 ratio. Nine healthy volunteers, (age, 23.3 ± 3.9 years; body mass index, 24.2 ± 4.1 kg·m2; body fat %, 18.6 ± 10.0) randomly consumed either a reference food or amount of the test food both with equal carbohydrate content in two visits. In each visit, seven blood samples were collected; the first sample after an overnight fast and the remaining six at 15, 30, 45, 60, 90 and 120 min after the beginning of food consumption. Plasma glucose concentration was measured and the GI was determined by calculation of the incremental area under the curve. The GL was calculated using the equation: test food GI/100 g available carbohydrates per test food serving. The GI of the test food was found to be 5.18 ± 3.27, while the GL of one test food serving was 1.09 ± 0.68. These results indicate that the tested product can be classified as a low GI (<55) and low GL (<10) food. Given the health benefits of low glycaemic response foods and whey protein consumption, the tested food could potentially promote health beyond basic nutrition. View Full-Text
Keywords: glycaemic index; glycaemic load; functional food glycaemic index; glycaemic load; functional food
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Manthou, E.; Kanaki, M.; Georgakouli, K.; Deli, C.K.; Kouretas, D.; Koutedakis, Y.; Jamurtas, A.Z. Glycemic Response of a Carbohydrate-Protein Bar with Ewe-Goat Whey. Nutrients 2014, 6, 2240-2250.

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