Metabolic health benefits of long-chain omega-3 polyunsaturated fatty acids

Howe, Peter and Buckley, Jon (2014) Metabolic health benefits of long-chain omega-3 polyunsaturated fatty acids. Military Medicine, 179 (11S). pp. 138-143. ISSN 0026-4075

Abstract

Restricting energy intake and increasing physical activity are advocated for reducing obesity, but many individuals have difficulty complying with these recommendations. Consumption of long-chain omega-3 polyunsaturated fatty acids (n-3 LCPUFA) offers multiple mechanisms to counteract obesity, including appetite suppression; circulatory improvements, which promote nutrient delivery to skeletal muscle and changes in gene expression, which shift metabolism toward increased fat oxidation; increased energy expenditure; and reduced fat deposition. n-3 LCPUFA may also alter gene expression in skeletal muscle to suppress catabolic pathways and upregulate anabolic pathways, resulting in greater lean tissue mass, metabolic rate, and maintenance of physical function. n-3 LCPUFA supplementation has been shown to counteract obesity in rodents, but evidence in humans is limited. Epidemiological associations between n-3 LCPUFA intakes and obesity are inconclusive. Several studies, on the other hand, indicate inverse relationships between biomarkers of n-3 LCPUFA status and obesity, although causality is uncertain. There have been few human intervention trials of omega-3 supplementation for obesity; some have indicated potential benefits, especially when combined with energy-restricted diets or exercise. More trials are needed to confirm these effects and identify mechanisms of action.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 02 Jun 2017 05:58
Last Modified: 02 Jun 2017 05:58
Uncontrolled Keywords: Appetite Regulation; Blood Circulation; Energy Metabolism; Fatty Acids, Omega-3; Humans; Lipid Metabolism; Muscle, Skeletal; Obesity
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: 10.7205/MILMED-D-14-00154
URI: http://eprints.usq.edu.au/id/eprint/31580

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