Effect of 12 weeks high oleic peanut consumption on cardio-metabolic risk factors and body composition

Barbour, Jayne A. and Howe, Peter R. C. and Buckley, Jonathan D. and Bryan, Janet and Coates, Alison M. (2015) Effect of 12 weeks high oleic peanut consumption on cardio-metabolic risk factors and body composition. Nutrients, 7 (9). pp. 7381-7398.

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Abstract

Epidemiological evidence indicates an inverse association between nut consumption and obesity, inflammation, hyperlipidaemia and glucose intolerance. We investigated effects of high oleic peanut consumption vs. a nut free diet on adiposity and cardio-metabolic risk markers. In a randomised cross-over design, 61 healthy subjects (65 ± 7 years, body mass index (BMI) 31 ± 4 kg/m2) alternated either high oleic peanuts (15%–20% of energy) or a nut free diet for 12 weeks. Body composition and mass, waist circumference, C-reactive protein (CRP), lipids, glucose and insulin were assessed at baseline and after each phase. Repeated measures analysis of variance (ANOVA) compared the two diets. Consistent with other nut studies, there were no differences in lipids, CRP, glucose and insulin with peanut consumption. In contrast, some reports have demonstrated benefits, likely due to differences in the study cohort. Energy intake was 10% higher (853 kJ, p < 0.05), following peanut consumption vs. control, attributed to a 30% increase in fat intake (p < 0.001), predominantly monounsaturated (increase 22 g, p < 0.05). Despite greater energy intake during the peanut phase, there were no differences in body composition, and less than predicted increase (0.5 kg) in body weight for this additional energy intake, possibly due to incomplete nutrient absorption and energy utilisation.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
Faculty / Department / School: No Faculty
Date Deposited: 01 Jun 2017 06:16
Last Modified: 02 Nov 2017 02:03
Uncontrolled Keywords: Body weight; Glucose; High-oleic peanuts; Inflammation; Insulin; Lipids; Cardiovascular Diseases and Cardiovascular Surgery; Clinical and Experimental Biochemistry
Fields of Research : 11 Medical and Health Sciences > 1111 Nutrition and Dietetics > 111199 Nutrition and Dietetics not elsewhere classified
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970111 Expanding Knowledge in the Medical and Health Sciences
Identification Number or DOI: 10.3390/nu7095343
URI: http://eprints.usq.edu.au/id/eprint/31569

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