Monday, August 03, 2009

Omega-3 linked to lower body weight: Study

Omega-3 linked to lower body weight: Study

Increased blood levels of the omega-3 fatty acids EPA and DHA is linked to lower incidence of obesity, suggesting a role for fish oils in weight management.

New findings reported in the British Journal of Nutrition indicate that overweight and obese people have blood levels of omega-3 fatty acids almost 1 per cent lower than people with a healthy weight.

“Our findings suggest that n-3 PUFA may play an important role in weight status and abdominal adiposity,” wrote the researchers, led by Professor Monohar Garg from the University of Newcastle, and president elect of the Nutrition Society of Australia.

Previous studies have implicated omega-3 in protective benefits against obesity, and the new study adds to this small but growing body of evidence. A considerable number of studies already support the benefits of the omega-3 fatty acids eicosapentaenoic acid (EPA, C20:5 n-3) and docosahexaenoic acid (DHA, C22:6 n-3) for cardiovascular health, and cognitive health. Other areas of potential for the fatty acids include mood and behaviour, eye health, cancer risk reduction, and improved infant development.

“Previous studies involving children and adolescents have shown a negative correlation between adiposity and plasma omega-3 PUFA and DHA concentrations, but there appears to be a paucity of research in adults,” explained the researchers.

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