Gut content and stable isotope analyses were used to investigate the feeding habits of loggerhead seaturtles (Caretta caretta) inhabiting the Balearic archipelago. Turtles caught in the pelagic realm (δ13C:-16.0±0.6‰ and δ15N: 8.5±0.9‰) and turtles caught on the continental shelf (δ13C: -16.7±0.6‰and δ15N: 8.4±1.3‰) did not differ in their isotopic signatures, suggesting that their diets include the sameprey types. A mixing model revealed that for the turtles here analysed, squid and the jellyfishCotylorhiza tuberculata were the most relevant prey, although stomach contents analysis revealed that carnivorousjellyplankton, neuston, fish and other cephalopods were also consumed. Gut content analysis alsoindicated that most of the prey identified, including all fish and most cephalopods, were of pelagic origin.Thus, loggerhead sea turtles inhabiting central regions of the western Mediterranean appear to seldomexploit benthic prey, even while on the continental shelf.