Journal article
Evaluation of the composition of omega-3 fatty acids in dietary oil supplements
Nutrition & dietetics, Vol.67(3), pp.182-189
2010
Abstract
Aim: The aim of the present study was to determine the fatty acid composition of 19 dietary oil supplements that are commercially available in Australia, comparing findings with manufacturers' reported omega-3 fatty acid content. Methods: Fifteen fish oil supplements and four non-fish oil supplements were obtained from Australian retail stores. Fatty acids were derivatised, and fatty acid methyl esters were quantitated using classical GC-flame ionisation detection methods. Composition of eicosapentaenoic acid and docosahexaenoic acid reported by supplement manufacturers was compared with experimental values using the Bland-Altman plot. Results: The combined eicosapentaenoic acid and docosahexaenoic acid content in the fish oil and non-fish oil supplements was 17.63-71.45% and 0.00-0.05% respectively. A high level of congruency was observed for the composition of eicosapentaenoic acid and docosahexaenoic acid reported by manufacturers and determined experimentally (mean difference, eicosapentaenoic acid, 13.2 mg; docosahexaenoic acid, 12.8 mg). Conclusion: Current practice in pre-market assessment of complementary medicines in Australia is satisfactory for supplements examined in the present study. Intake of these fish oil supplements can be used to provide high levels of long-chain omega-3 fatty acids that would be otherwise difficult to achieve through normal dietary intake alone.
Details
- Title
- Evaluation of the composition of omega-3 fatty acids in dietary oil supplements
- Authors
- Karina D Hamilton (Author) - University of the Sunshine Coast - Faculty of Science, Health and EducationPeter R Brooks (Author) - University of the Sunshine Coast - Faculty of Science, Health and EducationMark A Holmes (Author) - University of the Sunshine Coast - Faculty of Science, Health and EducationJ Cunningham (Author) - Food Standards Australia New ZealandFraser D Russell (Author) - University of the Sunshine Coast - Faculty of Science, Health and Education
- Publication details
- Nutrition & dietetics, Vol.67(3), pp.182-189
- Publisher
- Wiley-Blackwell Publishing Asia
- Date published
- 2010
- DOI
- 10.1111/j.1747-0080.2010.01453.x
- ISSN
- 1446-6368
- Organisation Unit
- School of Health - Biomedicine; School of Science and Engineering - Legacy; School of Health; University of the Sunshine Coast, Queensland; GeneCology Research Centre - Legacy; School of Health and Sport Sciences - Legacy; School of Science, Technology and Engineering; Centre for Bioinnovation; School of Health and Behavioural Sciences - Legacy
- Language
- English
- Record Identifier
- 99449483002621
- Output Type
- Journal article
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