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Nutrients 2017, 9(2), 149; doi:10.3390/nu9020149

Effect of Fibre Supplementation on Body Weight and Composition, Frequency of Eating and Dietary Choice in Overweight Individuals

1
School of Public Health, Faculty of Health Sciences, Curtin University, Perth WA 6845, Australia
2
Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI 96813, USA
3
Video and Image Processing Laboratory, School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA
4
Flinders Centre for Innovation in Cancer, School of Medicine, Flinders University, Adelaide 5001, Australia
5
Factors Group R & D, Burnaby, BC V3N4S9, Canada
6
Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth WA 6845, Australia
7
Centre for Population Health Research, Faculty of Health Sciences, Curtin University, Perth WA 6845, Australia
8
InovoBiologic Inc., Calgary, AB Y2N4Y7, Canada
9
Food, Nutrition and Health Program, University of British Columbia, Vancouver, BC V6T1Z4, Canada
*
Author to whom correspondence should be addressed.
Received: 12 December 2016 / Accepted: 13 February 2017 / Published: 16 February 2017
(This article belongs to the Special Issue Dietary Fibers and Human Health)
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Abstract

Fibre supplementation can potentially reduce energy intake and contribute to weight loss. The mechanism may be reduced frequency of eating, resulting in reduced food consumption. The objective of this research was to determine the effectiveness of fibre supplementation with PolyGlycopleX® (PGX®), on body weight and composition, frequency of eating and dietary intake in 118 overweight adults. In a three‐arm, parallel, blind, randomised controlled trial participants were randomised to one of three groups; 4.5 g PGX as softgels (PGXS), 5 g PGX granules (PGXG) or 5 g rice flour (RF) control. Prior to supplementation and at 12 weeks, participants captured before and after images of all food and beverages consumed within 4 days using a mobile food record app (mFR). The mFR images were analysed for food group serving sizes and number of eating occasions. In the PGXG group, intention‐to‐treat analysis showed there was a significant reduction in waist circumference (2.5 cm; p = 0.003). Subgroup analysis showed that PGXG supplementation at the recommended dose resulted in a reduction in body weight (−1.4 ± 0.10 kg, p < 0.01), body mass index (BMI) reduction (-0.5 ± 0.10, p < 0.01), reduced number of eating occasions (−1.4 ± 1.2, p < 0.01) and a reduced intake of grain food (-1.52 ± 1.84 serves, p = 0.019). PGXG at the recommended dose resulted in a reduction in weight and BMI which was significantly greater than that for RF (p = 0.001). These results demonstrate the potential benefits of PGX fibre in controlling frequency of eating and in weight loss. View Full-Text
Keywords: fibre; weight; waist circumference; frequency; eating; PolyGlycopleX® (PGX) fibre; weight; waist circumference; frequency; eating; PolyGlycopleX® (PGX)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Solah, V.A.; Kerr, D.A.; Hunt, W.J.; Johnson, S.K.; Boushey, C.J.; Delp, E.J.; Meng, X.; Gahler, R.J.; James, A.P.; Mukhtar, A.S.; Fenton, H.K.; Wood, S. Effect of Fibre Supplementation on Body Weight and Composition, Frequency of Eating and Dietary Choice in Overweight Individuals. Nutrients 2017, 9, 149.

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