Krill Oil Found to be Superior at Raising Omega-3 Index
The omega-3 index measures the amount of omega-3 fatty acids DHA and EPA present in red blood cells, and is considered to be a risk factor for cardiovascular disease. An omega-3 index between 8% and 11% is recommended for optimal health. A new study suggests that krill oil may be more effective than fish oil at raising the omega-3 index.
Participants in the study included 24 healthy volunteers who completed three phases of the study. Each phase lasted four weeks and was followed by an eight week washout period. During one phase they took six capsules of krill oil at a 600mg dose, in the second they took six capsules of fish oil, and in the third they took six capsules of corn oil as a placebo.
At the conclusion of the study, the researchers found that both krill and fish oil increased omega-3 levels. However, the krill oil had a greater effect with a 1.04% increase compared to a 0.47% increase from the fish oil.
Additionally, both krill oil and fish oil were found to lower the ratio of omega-6s to omega-3s, but the krill oil produced a greater reduction. However, krill oil also costs two to three times more than fish oil.
Researchers from the Richardson Center for Functional Foods and Nutraceuticals and Enzymotec Ltd. conducted the study. It was published online ahead of print on December 5, 2013, in Lipids in Health and Disease.
Omega-3s have been linked to a number of health benefits, including alleviating arthritis pain, better moods, improved joint mobility, helping with age related macular degeneration, and aiding your immune system.
Because omega-3 fatty-acids are not found naturally in the human body, it is especially important to make sure that they are a part of your daily diet. Oily, dark fish such as tuna and salmon are high in omega-3s.