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Nutrients 2014, 6(9), 3382-3402; doi:10.3390/nu6093382
Article

A Nutritional-Toxicological Assessment of Antarctic Krill Oil versus Fish Oil Dietary Supplements

1,* , 2
 and 3
Received: 4 May 2014; in revised form: 30 June 2014 / Accepted: 7 August 2014 / Published: 28 August 2014
View Full-Text   |   Download PDF [276 KB, updated 11 September 2014; original version uploaded 28 August 2014]
Abstract: Fish oil dietary supplements and complementary medicines are pitched to play a role of increasing strategic importance in meeting daily requirements of essential nutrients, such as long-chain (≥C20, LC) omega-3 polyunsaturated fatty acids and vitamin D. Recently a new product category, derived from Antarctic krill, has been launched on the omega-3 nutriceutical market. Antarctic krill oil is marketed as demonstrating a greater ease of absorption due to higher phospholipid content, as being sourced through sustainable fisheries and being free of toxins and pollutants; however, limited data is available on the latter component. Persistent Organic Pollutants (POP) encompass a range of toxic, man-made contaminants that accumulate preferentially in marine ecosystems and in the lipid reserves of organisms. Extraction and concentration of fish oils therefore represents an inherent nutritional-toxicological conflict. This study aimed to provide the first quantitative comparison of the nutritional (EPA and DHA) versus the toxicological profiles of Antarctic krill oil products, relative to various fish oil categories available on the Australian market. Krill oil products were found to adhere closely to EPA and DHA manufacturer specifications and overall were ranked as containing intermediate levels of POP contaminants when compared to the other products analysed. Monitoring of the pollutant content of fish and krill oil products will become increasingly important with expanding regulatory specifications for chemical thresholds.
Keywords: Antarctic krill oil; dietary supplements; persistent organic pollutants; long-chain omega-3 polyunsaturated fatty acids Antarctic krill oil; dietary supplements; persistent organic pollutants; long-chain omega-3 polyunsaturated fatty acids
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Bengtson Nash, S.M.; Schlabach, M.; Nichols, P.D. A Nutritional-Toxicological Assessment of Antarctic Krill Oil versus Fish Oil Dietary Supplements. Nutrients 2014, 6, 3382-3402.

AMA Style

Bengtson Nash SM, Schlabach M, Nichols PD. A Nutritional-Toxicological Assessment of Antarctic Krill Oil versus Fish Oil Dietary Supplements. Nutrients. 2014; 6(9):3382-3402.

Chicago/Turabian Style

Bengtson Nash, Susan M.; Schlabach, Martin; Nichols, Peter D. 2014. "A Nutritional-Toxicological Assessment of Antarctic Krill Oil versus Fish Oil Dietary Supplements." Nutrients 6, no. 9: 3382-3402.


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