“Fishing” For The Origins Of The “Eskimos And Heart Disease” Story. Facts Or Wishful Thinking?, Canadian Journal of Cardiology, 14 April 2014
“During the 1970s, two Danish investigators, Bang and Dyerberg, upon being informed that the Greenland Eskimos had a low prevalence of coronary artery disease (CAD) set out to study the diet of this population. Bang and Dyerberg described the “Eskimo diet” as consisting of large amounts of seal and whale blubber (i.e. fats of animal origin) and suggested that this diet was a key factor in the alleged low incidence of CAD. This was the beginning of a proliferation of studies that focused on the cardioprotective effects of the “Eskimo diet”.
In view of data, which accumulated on this topic during the past 40 years, we conducted a review of published literature to examine whether mortality and morbidity due to CAD are indeed lower in Eskimo/Inuit populations compared to their Caucasian counterparts. Most studies found that the Greenland Eskimos as well as the Canadian and Alaskan Inuit have CAD as often as the non-Eskimo populations. Notably, Bang and Dyerberg’s studies from the 1970s did not investigate the prevalence of CAD in this population; however, their reports are still routinely cited as evidence for the cardioprotective effect of the “Eskimo diet”. We discuss the possible motives leading to the misinterpretation of these seminal studies.”
One thing you can say for sure … their diet is not protecting them from heart disease.
Lead investigator George Fodor said:
“Bang and Dyerberg’s seminal studies from the 1970s are routinely invoked as ‘proof’ of low prevalence of CAD in Greenland Eskimos ignoring the fact that these two Danish investigators did not study the prevalence of CAD. Instead, their research focused on the dietary habits of Eskimos and offered only speculation that the high intake of marine fats exerted a protective effect on coronary arteries.”
Not only do Eskimos develop CAD at the same rate as non-Eskimos, but
“[Eskimos] have very high rates of mortality due to cerebrovascular events (strokes). Overall, their life expectancy is approximately 10 years less than the typical Danish population and their overall mortality is twice as high as that of non-Eskimo populations.”
Fodor et al. said the reason CAD prevalence was thought to be less 40 years ago was because Eskimos’ rural lifestyle and inaccessible geography prevented access to medical care which led to inaccurate and incomplete death records.
“Considering the dismal health status of Eskimos, it is remarkable that instead of labeling their diet as dangerous to health, a hypothesis has been construed that dietary intake of marine fats prevents CAD and reduces atherosclerotic burden.”
Salmon is not a health food.