Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/43314
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Type: | Journal article |
Title: | Long-term weight maintenance and cardiovascular risk factors are not different following weight loss on carbohydrate-restricted diets high in either monounsaturated fat or protein in obese hyperinsulinaemic men and women |
Author: | Keogh, J. Luscombe-Marsh, N. Noakes, M. Wittert, G. Clifton, P. |
Citation: | The British Journal of Nutrition: an international journal of nutritional science, 2007; 97(2):405-410 |
Publisher: | C A B I Publishing |
Issue Date: | 2007 |
ISSN: | 0007-1145 1475-2662 |
Statement of Responsibility: | Jennifer B. Keogh, Natalie D. Luscombe-Marsh, Manny Noakes, Gary A. Wittert and Peter M. Clifton |
Abstract: | The aim of this study was to determine after 52 weeks whether advice to follow a lower carbohydrate diet, either high in monounsaturated fat or low fat, high in protein had differential effects in a free-living community setting. Following weight loss on either a high monounsaturated fat, standard protein (HMF; 50 % fat, 20 % protein (67 g/d), 30 % carbohydrate) or a high protein, moderate fat (HP) (40 % protein (136 g/d), 30 % fat, 30 % carbohydrate) energy-restricted diet (6000 kJ/d) subjects were asked to maintain the same dietary pattern without intensive dietary counselling for the following 36 weeks. Overall weight loss was 6·2 (sd 7·3) kg (P < 0·01 for time with no diet effect, 7·6 (sd 8·1) kg, HMF v. 4·8 (sd 6·6) kg, HP). In a multivariate regression model predictors of weight loss at the end of the study were sex, age and reported percentage energy from protein (R2 0·22, P < 0·05 for the whole model). Fasting plasma insulin decreased (P < 0·01, with no difference between diets), 13·9 (sd 4·6) to 10·2 (sd 5·2) mIU/l, but fasting plasma glucose was not reduced. Neither total cholesterol nor LDL-cholesterol were different but HDL was higher, 1·19 (sd 0·26) v. 1·04 (sd 0·29) (P < 0·001 for time, no diet effect), while TAG was lower, 1·87 (sd 1·23) v. 2·22 (sd 1·15) mmol/l (P < 0·05 for time, no diet effect). C-reactive protein decreased (3·97 (sd 2·84) to 2·43 (sd 2·29) mg/l, P < 0·01). Food records showed that compliance to the prescribed dietary patterns was poor. After 1 year there remained a clinically significant weight loss and improvement in cardiovascular risk factors with no adverse effects of a high monounsaturated fat diet. |
Keywords: | Protein Weight loss Carbohydrate HDL-cholesterol |
Rights: | Copyright © The Authors 2007 |
DOI: | 10.1017/S0007114507252687 |
Published version: | http://dx.doi.org/10.1017/s0007114507252687 |
Appears in Collections: | Aurora harvest Medicine publications |
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hdl_43314.pdf | Published version | 87.07 kB | Adobe PDF | View/Open |
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