Daily ingestion of alginate reduces energy intake in free-living subjects

PAXMAN, J. R., RICHARDSON, J. C., DETTMAR, P. W. and CORFE, B. M. (2008). Daily ingestion of alginate reduces energy intake in free-living subjects. Appetite, 51 (3), 713-719.

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Link to published version:: 10.1016/j.appet.2008.06.013


Sodium alginate is a seaweed-derived fibre that has previously been shown to moderate appetite in models of acute feeding. The mechanisms underlying this effect may include slowed gastric clearance and attenuated uptake from the small intestine. In order to assess whether alginate could be effective as a means of appetite control in free-living adults, 68 males and females (BMI range: 18.50-32.81 kgl M-2) completed this randomised, controlled two-way crossover intervention to compare the effects of 7 day daily ingestion of a strong-gelling sodium alginate formulation against a control. A sodium alginate with a high-guluronate content was chosen because, upon ingestion, it forms a strong gel in the presence of calcium ions. Daily preprandial ingestion of the sodium alginate formulation produced a significant 134.8 kcal (7%) reduction in mean daily energy intake. This reduced energy intake was underwritten by significant reductions in mean daily carbohydrate, sugar, fat, saturated fat and protein intakes. The absence of any significant interaction effects between the main effect of preload type and those of gender, BMI classification and/or timing of preload delivery indicates the efficacy of this treatment for individuals in different settings. These findings suggest a possible role for a strong-gelling sodium alginate formulation in the future management of overweight and obesity. (C) 2008 Elsevier Ltd. All rights reserved.

Item Type: Article
Research Institute, Centre or Group: Sheffield Business School Research Institute > Tourism, Hospitality, Events and Food
Identification Number: 10.1016/j.appet.2008.06.013
Depositing User: Ann Betterton
Date Deposited: 18 Feb 2010 13:54
Last Modified: 20 Aug 2015 21:04
URI: http://shura.shu.ac.uk/id/eprint/1183

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