Fish oil supplements in New Zealand are highly oxidised and do not meet label content of n-3 PUFA

We evaluated the quality and content of fish oil supplements in New Zealand. All encapsulated fish oil supplements marketed in New Zealand were eligible for inclusion. Fatty acid content was measured by gas chromatography. Peroxide values (PV) and anisidine values (AV) were measured and total oxidat...

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Bibliographic Details
Published in:Scientific reports 2015-01, Vol.5 (1), p.7928-7928, Article 7928
Main Authors: Albert, Benjamin B., Derraik, José G. B., Cameron-Smith, David, Hofman, Paul L., Tumanov, Sergey, Villas-Boas, Silas G., Garg, Manohar L., Cutfield, Wayne S.
Format: Article
Language:English
Subjects:
692/308
692/700
Dietary Supplements - analysis
Docosahexaenoic acid
Docosahexaenoic Acids - analysis
Docosahexaenoic Acids - chemistry
Eicosapentaenoic acid
Eicosapentaenoic Acid - analysis
Eicosapentaenoic Acid - chemistry
Fish
Fish oils
Food Analysis
Food Quality
Gas chromatography
Humanities and Social Sciences
Humans
multidisciplinary
New Zealand
Oxidation
Oxidation-Reduction
Peroxide
Polyunsaturated fatty acids
Science
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Summary:We evaluated the quality and content of fish oil supplements in New Zealand. All encapsulated fish oil supplements marketed in New Zealand were eligible for inclusion. Fatty acid content was measured by gas chromatography. Peroxide values (PV) and anisidine values (AV) were measured and total oxidation values (Totox) calculated. Only 3 of 32 fish oil supplements contained quantities of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) that were equal or higher than labelled content, with most products tested (69%) containing
ISSN:2045-2322
2045-2322
DOI:10.1038/srep07928