Krill Oil Supplementation Lowers Your Triglycerides

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February 10, 2014 | 146,924 views

Story at-a-glance

  • Krill oil supplementation lowers triglyceride levels in adults with borderline high or high triglycerides by more than 10 percent
  • Past research has shown krill oil may lower triglycerides by twice as much as fish oil
  • In addition to heart-health benefits, krill oil may benefit more than 20 health conditions, including brain function, arthritis, depression, and more
  • Krill oil is superior to fish oil due to astaxanthin protecting the perishable fats, and the phospholipids in krill that massively increase the absorption of the omega-3 fats

By Dr. Mercola

Most Americans are seriously deficient in animal-based omega-3 fats. If you're among them, this means you are missing out on many health advantages that these fats offer.

Maintaining a high dietary omega-3 intake throughout your life is essential for optimal health, and the research continues to pour in that krill oil, in particular, is the preferable source.

Lower Your Triglycerides: Krill Oil for Your Heart

Triglycerides are a type of fat in your blood. Elevated levels are linked to an increased risk of heart disease, and high triglycerides are also one of the signs of metabolic syndrome.

Eating a healthful diet is one of the best ways to keep your triglyceride levels in the optimal range, and this includes omega-3 fats. Recent research published in Nutrition Research1 revealed that krill oil supplementation lowers triglyceride levels in adults with borderline high or high triglycerides – by more than 10 percent.

The researchers concluded: "krill oil is effective in reducing a cardiovascular risk factor." This isn't the first time krill oil has been shown to reduce triglycerides, and past research also showed that it is more effective than fish oil at doing so.

One study revealed that while the metabolic effects of the two oils are "essentially similar," krill oil is as effective as fish oil despite the fact that it contains less EPA and DHA (the primary active fatty acids in animal-based omega-3 fats).2

In that case, the EPA and DHA dose in the krill oil was nearly 63 percent less than that in the fish oil – but the beneficial effects were virtually the same. This finding corresponds with unpublished data suggesting that krill oil is absorbed up to 10-15 times as well as fish oil, which would explain this discrepancy.

Krill Oil Works Better Than Fish Oil, and on Par with Statins, to Improve Lipid Profiles

Separate research published in the Journal of Animal Physiology and Animal Nutrition3 compared the efficiency of krill oil and fish oil in reducing triglyceride levels. Over a six-week period, rats divided into three groups had their diets supplemented with one of the following:

  1. 2.5 percent krill oil
  2. 2.5 percent fish oil
  3. No supplement

In less than three weeks, both oils had markedly reduced the enzyme activity that causes the liver to metabolize fat, but the krill oil had a far more pronounced effect, reducing liver triglycerides significantly more. The higher potency of krill oil allows it to decrease triglyceride levels in a shorter period of time compared to fish oil.

Overall, after six weeks of supplementation, cholesterol levels in the krill oil group declined by 33 percent, compared to 21 percent in the fish oil group.

Further, liver triglycerides were reduced by TWICE as much in the krill oil group compared to the fish oil group, by 20 percent and 10 percent, respectively. This is particularly important, as fasting triglyceride levels are a powerful indication of your body's ability to have healthy lipid profiles.

To put this into further context, after being on a statin drug combined with daily exercise for several months, participants in one 1997 study4 saw an average reduction in their cholesterol levels of 20 percent. This is why krill oil is actually being used as a drug in some European countries.

Krill Oil Vs. Fish Oil: What's the Difference?


The really great thing about taking a supplement like krill oil is that it benefits your health on multiple levels. It won't "only" help your heart by lowering your triglycerides… It's also been proven to benefit your brain, slowing memory loss and improving conditions like ADHD, inflammatory conditions like arthritis and pain, depression, and much more.

A major reason krill oil has such impressive benefits is that it powerfully reduces inflammation in your body, which is at the root of many chronic diseases. GreenMedInfo6 now lists 20 different conditions krill oil may help prevent or reverse, several of which are listed in the table below. Of course, if you extend the search to include everything related to omega-3 fats, the list of benefits expands even more, since the gifts of krill oil include everything known to be good about omega-3s. The implications are truly profound, and I'm sure you'll be seeing much more krill research in the future.

Cardiovascular disease and hyperlipidemia Inflammation, and C-Reactive ProteinOxidative stress
Arthritis: osteoarthritis and rheumatoid arthritis (RA)Metabolic syndrome, including obesity and fatty liverPremenstrual syndrome (PMS) and dysmenorrhea
Brain disease: cognitive dysfunction, memory loss, brain aging, learning disorders, and ADHDCancerKidney disease

The Key to Getting the Most Benefit from Omega-3 Fats

Omega-3 fats improve your cell's response to insulin, neurotransmitters, and other messengers. They also help the repair process when your cells are damaged. On the other hand, omega-6 fats, which are found in vegetable oils, are pro-inflammatory and contribute to insulin and membrane resistance, altering your mood, and impairing learning and cell repair. To avoid high levels of omega-6, it is important to avoid all vegetable seed oils.

In order to take your health to the next level, please understand that it's not only necessary to consciously consume omega-3 fats; it is just as important to lower your omega-6 fat intake. If you don't lower your omega-6 fats to acceptable levels, your omega-6:3 ratio will not be low enough, and you may not receive many of the wonderful benefits of omega-3 fats such as reduced risk of heart disease, cancer, stroke, Alzheimer's, arthritis, and many other degenerative illnesses.

My nutrition plan is a step-by-step guide to help you increase your intake of healthful omega-3 (and other fats) while lowering your intake of excess omega-6 fats. This diet will help you optimize your omega-6:3 ratio so you're able to get the most benefit out of the omega-3 fats in your krill oil supplement.

[+]Sources and References [-]Sources and References

  • 1 Nutrition Research February 2014; 34(2):126-33.
  • 2 Lipids. 2011 Jan;46(1):37-46.
  • 3 Journal of Animal Physiology and Animal Nutrition Volume 96, Issue 2, pages 295–306, April 2012
  • 4 Am J Cardiol. 1997 Apr 15;79(8):1112-4.
  • 5 CNN Health, Krill Oil vs Fish Oil
  • 6 Krill