Shark liver oil

Shark oil is extracted from the livers of sharks, which can account for up to 25% of their total body weight. The 3 main targeted species are the deep sea shark (Centrophorus squamosus), the dogfish (Sqaulus acanthias), and the basking shark (Cetorhinus maximus). Shark oil is a rich source of alkylglycerols and squalene, with relatively low amounts of n-3 polyunsaturated fatty acids. However the major component is considered to be squalene, which may range up to 90% of the shark oil, depending on the species. The potential benefit of shark oil has been experimented in different therapeutic implications, where it is claimed to improve immune responses and exert an antitumor activity.