SubscribeMuch of what we know about the Eskimo diet comes from the legendary arctic anthropologist and adventurer Vilhjalmur Stefansson, who made several daredevil journeys through the region in the early 20th century. Stefansson noticed the same thing you did, that the traditional Eskimo diet consisted largely of meat and fish, with fruits, vegetables, and other carbohydrates--the usual source of vitamin C--accounting for as little as 2 percent of total calorie intake. Yet they didn't get scurvy.
Stefansson argued that the native peoples of the arctic got their vitamin C from meat that was raw or minimally cooked--cooking, it seems, destroys the vitamin. (In fact, for a long time "Eskimo" was thought to be a derisive Native American term meaning "eater of raw flesh," although this is now discounted.) Stefansson claimed the high incidence of scurvy among European explorers could be explained by their refusal to eat like the natives. He proved this to his own satisfaction by subsisting in good health for lengthy periods--one memorable odyssey lasted for five years--strictly on whatever meat and fish he and his companions could catch.
A few holdouts didn't buy it. To settle the matter once and for all, Stefansson and a colleague lived on a meat-only diet for one year under medical supervision at New York's Bellevue Hospital, starting in February 1928. The two ate between 100 and 140 grams of protein a day, the balance of their calories coming from fat, yet they remained scurvy free. Later in life Stefansson became a strong advocate of a high-meat diet even if you didn't live in the arctic; he professed to enjoy improved health, reduced weight, etc, from meals consisting of coffee, the occasional grapefruit, and a nice steak, presumably rare. Doesn't sound half bad, and one might note that until recently the Inuit rarely suffered from atherosclerosis and other Western ailments.
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(It's worth pointing out that even while drawing from some of the crank-iness listed above, they seem to have their own particular brand in almost all cases. In other words, it would be unfair to judge raw foodists or homeopaths on the basis of this crazy family, even if there are other reasons to suspect that the notion that raw food, for instance, is inherently better than cooked food is cranky.)
posted by OmieWise at 1:04 PM on September 18, 2007