Krill oil is a dietary supplement extracted from tiny crustaceans found in the Antarctic Ocean. It has been used for centuries by the indigenous people of the region for its various health related properties. Krill oil contains high levels of naturally occurring EPA and DHA omega-3 fatty acids, as well as astaxanthin and phospholipids, which have been linked to a range of health benefits including heart, joint, and immune health. Due to its numerous health benefits and easy bioavailability, krill oil has become increasingly popular over the general fish oil supplements.