Fit people with a diet of fat

The Secret To The Inuit High-Fat Diet May Be Good Genes : The Salt : NPR: 

In the Arctic, the typical meal looks very different. There, a traditional plate would have some fatty marine animal like seal or whale and not much else – fruits and vegetables are hard to come by in the harsh climate.
And yet despite the fact that the high-fat Arctic diet may sound like a heart attack waiting to happen, these people tend to have low rates of heart disease and diabetes.
Researchers thought maybe it was the omega-3 fatty acids in the meat and blubber that might be protective. But a new study on Inuit in Greenland suggests that Arctic peoples evolved certain genetic adaptations that allow them to consume much higher amounts of fat than most other people around the world, according a team of researchers reporting Thursday in the journal Science.
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