Researchers from Sweden's Karolinska Institutet and the University of Bergen, Norway, have concluded that the omega-3s in krill are advantageous for reducing high blood triglycerides. Their recently published study in Nutrition & Metabolism compared equal amounts of Superba(TM) krill oil and fish oil in a high-fat diet given to mice for six weeks. The effects on plasma and liver lipids as well as gene regulation in the liver and intestine were measured at the end of the study.
"When comparing krill and fish oil supplementation, we found differences in the metabolic regulation of genes involved in lipid degradation and synthesis," commented author Veronika Tillander, PhD. "While fish oil mainly increased the degradation of lipids, krill oil decreased the expression of genes involved in endogenous fatty acid and cholesterol synthesis."
Lena Burri, PhD, director of scientific writing at Aker BioMarine Antarctic, added: "Even though the krill oil diet contained less omega-3 fatty acids, plasma and liver phospholipid omega-3 levels were similar in the krill and fish oil supplemented groups. Krill oil's special combination of omega-3 fatty acids in phospholipid form may therefore represent an attractive means of managing high blood lipids."
Explaining what these findings mean for Superba Krill moving forward, Tove Flem Jacobsen, vice president of R&D and regulatory affairs at Aker BioMarine Antarctic, said, "This study expands our knowledge base on the beneficial effects of krill oil on lipid metabolism. And it represents an important step in strengthening krill oil's position in the triglyceride-lowering market."