Arsenic-Containing Long-Chain Fatty Acids in Cod-Liver Oil: A Result of Biosynthetic Infidelity?


  • We thank the Austrian Science Council (FWF, Project P16816-N11) for financial support.


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A bit fishy: Six arsenolipids have been isolated from cod-liver oil and identified by HPLC and mass spectrometry as a series of arsenic-containing long-chain fatty acids (for example, see picture). These fatty acids account for about 20 % of the total arsenolipid content of cod-liver oil.