SANDERSON Krill Oil 1500mg 60capsWhat is Krill Oil? Krill oil is made from krill, a small, shrimp like crustacean that inhabits the cold ocean areas of the world. Despite their small size, krill make up the largest animal biomass on the planet. There are approximately 500 million tons of krill roaming in northern seas alone, and larger populations in the Southern Ocean. Krill oil, like fish oil, contains omega 3 fats such as eicosapentanoic acid (EPA) and docosahexanoic acid (DHA).