This study compared the effects of fish oil versus krill oil, with a control diet of oleic, linoleic plus alpha-linoleic oils. Fish and krill oils both lowered liver fat and inflammation compared to the control diet, 38% and 60% respectively. Krill oil, however, reduced heart triglycerides by 42% compared to the fish oil reduction of 2%. This substantial reduction of unhealthy fat deposition and inflammatory response is particular value in metabolic syndrome and type 2 diabetes.