Krill Oil vs Fish Oil
I never liked the fish oils, and was usually reminded throughout the day that of that fact. Now I take krill oil on a daily basis. I read this article on Dr. Mercola’s blog today and wanted to share this info with my patients and friends.
As a doctor I understand that omega fatty acids are very important and often overlooked. From combating inflammation and reducing oxidative stress in the body, it also helps with cardiovascular health, arthritis – osteoarthritis as well as rheumatoid arthritis – but is showing to help with cancer, kidney diseases, PMS, cholesterol imbalance and even brain conditions, like memory loss associated with aging, learning disorders and ADHD.
The shocking new study is that krill oil can affect certain genetic “on/off switches” in the body too. Here is a snippet of the article below, but please read the whole article. Especially if you are a person taking fish oils or suffer from some type of inflammatory condition like like heart disease, any arthritis, digestive disorders… well the list is long.
New Study Shows Krill Oil Flips on Key Metabolic Genes
Genes have “switches” that can be flipped on and off, which control virtually every biochemical process in your body. And nutrients like omega-3 fats control those switches. Your liver plays a major role in controlling how your body uses carbohydrates and lipids, utilizing omega-3 and omega-6 fats to sense your nutritional state and influence gene expression accordingly.
Fatty acids help to direct key metabolic processes such as glucose production, lipid synthesis, cellular energy, oxidation, and dozens of others. We now know that various types and sources of omega-3 fat affect liver tissue differently, which is what this study was designed to examine.
Krill oil actually influences your metabolism and genes to improve! The referenced study found that, although both fish oil and krill oil contain omega-3s, they differ greatly in how they affect the genes controlling your metabolism. Krill oil:
- Enhances glucose metabolism in your liver, whereas fish oil does not
- Promotes lipid metabolism, whereas fish oil does not
- Helps regulate the mitochondrial respiratory chain, whereas fish oil does not
- Decreases cholesterol synthesis, whereas fish oil increases it
So, krill will help lower your triglyceride and cholesterol levels and increase your energy production, whereas fish oil does neither and in fact may even raise your cholesterol level, according to the latest research. According to the researchers:
“Elevated hepatic glucose production is associated with metabolic disease in humans (Natali and Ferrannini, 2006), and we observed that krill oil supplementation favorably alters the expression of genes regulating hepatic glucose metabolism.”
Prior studies show that krill oil may lower your blood glucose level by increasing glucose
uptake by tissues other than your liver. In another study that directly compared krill oil with fish oil, krill oil was significantly more effective in reducing liver triglyceride levels. These studies all suggest krill oil may offer significant benefits for those with the metabolic dysregulation seen in obesity and type 2 diabetes—which is a problem of epidemic proportions in today’s world.
Omega-3 fats affect your cellular health and DNA chiefly by how they influence your cell membranes. It is these cell membranes that are critical in switching your genes on and off, because the membranes contain receptors that respond to hormones and other agents, and these are affected by the fatty acids on their surface. Your cell membranes contain EPA, DHA and phospholipids, and all help to shuttle molecules into and out of your cells. Therefore, having ample high quality fatty acids in your system is crucial to keeping your cell membranes working like well-oiled little machines.