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

Abstract

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.