Arsenolipids in marine oils and fats: A review of occurrence, chemistry and future research needs

► Arsenolipids are lipid-soluble arsenic compounds present in oils and fats of marine organisms. ► The current knowledge of their occurrence, chemical structures and biological relevance is addressed. ► The relevance of arsenolipids in food and feed is discussed with respect to food and feed safety. ► Analytical techniques employed in studies of arsenolipids are reviewed.