Friday, July 31, 2009

Omega-3, -6 levels linked to bowel health

Omega-3, -6 levels linked to bowel health

Increased intakes of omega-6 fatty acid linoleic acid may double the risk of ulcerative colitis, a type of inflammatory bowel disease, says a Pan-European study.

On the other hand, the highest intakes of omega-3 were associated with 77 per cent reduction in the risk of the disease, according to findings of the European Prospective Investigation into Cancer and Nutrition (EPIC) with 203,193 men and women published in Gut.

The study adds to a small but growing body of evidence supporting the importance of balance between omega-3 omega-6 fatty acids.

[...]

Commenting on the mechanism, Dr Hart wrote that omega-6 fatty acids are present in the cell membrane of colon cells in the form of arachidonic acid. This can be metabolised to prostaglandin E2, leukotriene B4 and thromboxane A2, all of which have pro-inflammatory effects.

On the other hand, omega-3 fatty acids, and particularly the anti-inflammatory effects of docosahexaenoic acid (DHA), which may prevent colonic inflammation.

Hmmm. DHA and EPA are omega 3 fats found in grassfed meat and fish. Not present in any vegetables. And essential for human health, as new study after another shows us. Note: the "omega 3" supplements you see made out of flaxseed do not contain DHA. So eating grassfed meat is good for you, eating carbs is bad for you.

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