Can Krill Help You Lose Weight?

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Omega-3s sourced from krill are more effective than fish oil in combating some metabolic symptoms, including raised fat levels in the heart and liver and violent mood swings.

The study concludes that while both fish-sourced and krill-sourced omega-3 fats are effective in reducing fat levels, krill is more effective.

The researchers said the mechanisms of why this was the case had not been made clear in the study, but suggested long-chain polyunsaturated fatty acids (LCPUFAs) may reduce activity in the endocannabinoid system. The endocannabinoid system consists of a group of neuromodulatory lipids and receptors that influence appetite, pain sensation, mood and memory.

The researchers found that, when parameters associated with obesity were considered, krill oil reduced rat heart fat levels by 42 percent, compared to 2 percent for fish oils.

In the liver, a 60 percent reduction was observed for krill, 38 percent for fish oil. Fat build up in the liver can lead to insulin insensitivity and cause type 2 diabetes

Resources: June 30, 2009
Journal of Nutrition June 23, 2009

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