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Fish Oil: Studies
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*More Fish Oil in the News: PUFAs Beneficial to Adipose Tissue* Omega-3 polyunsaturated fatty acids (n-3 PUFAs) may help reduce adiposity in type 2 diabetics, according to a random, double-blind study from France. Natural Products Insider: http://www.naturalproductsinsider.com/hotnews/81h151134492050.html
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Fish oil may help prevent cachexia, the severe wasting and weight loss experienced by people with some types of advanced cancer, says a British study in the current issue of Gut. Cachexia, a result of changes in metabolism and loss of appetite, is a major factor in the illness and death of patients with advanced cancer. This study included 200 people with pancreatic cancer. A high-calorie, high-protein supplement was given to 105 of the patients, while 95 of them received an energy-dense, high-protein supplement enriched with omega 3 essential fatty acid and vitamins E and C. Each group drank 480 milligrams a day for eight weeks. Omega 3 essential fatty acids are found in fatty fish such as salmon and herring. Before the study, the patients had lost about 17 percent of their body weight and were losing more than 3 kilograms of weight a month.
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Researchers from the Norwegian University of Science and Technology in Norway studied the effect of fish oil supplements on blood lipoprotein in 26 people with Type 2 diabetes. The study participants were assigned to take either fish oil or corn oil supplements. Size and concentration of lipoproteins subclasses (several blood cholesterol markers) as well as insulin sensitivity were measured after nine weeks of supplementation. High doses of fish oil reduced the size and concentration of several lipoprotein subclasses while lowering insulin sensitivity. Results of this study were published online on the European Journal of Clinical Nutrition website on Feb. 28, 2007.
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A recent fish oil study out of Texas A&M found that fish oil improved the ability of muscle cells to take up glucose, or blood sugar, in the presence of insulin. This is good news for those with Type II Diabetes because Type II Diabetes is a condition where cells resist insulin and therefore are unable to take up glucose. Furthermore, fish oil was shown to “improve cell viability, a measure of cellular metabolic activity.”
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NORTHBROOK, Ill., April 11, 2005 /PRNewswire via COMTEX/ -- Taking daily supplements of fish or soy oil may improve cardiac function and protect against heart attacks in the short-term. Study results published in the April issue of CHEST, the peer-reviewed journal of the American College of Chest Physicians, are the first to show that soy oil increases heart rate variability (HRV), a measure of cardiac autonomic function.
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[F]ar, the resume of fish oil’s health effects is very extensive. But can it add fat loss to the list as well? The buzz in the supplement industry would certainly want consumers to believe so. But as always, the answer can only begin to reveal itself in the research. Human studies examining the effect of fish oil supplementation on body composition are scarce, but that makes it easy to pick them apart.
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