niemieccy lekarze w latach czterdziestych doskonale wiedzieli, że bez tłuszczu prędzej, czy później trzeba zachorować, a w konsekwencji umrzeć
Wcześniej, w 1928 roku, wykazali to w eksperymencie na sobie samych Vilhjalmur Stefansson i Karsten Anderson. Przez rok, zamknięci w szpitalu Bellevue Hospital, New York City, odżywiali się wyłącznie surowym mięsem i surowym tłuszczem zwierzęcym. Dieta składająca się z samego mięsa (bez tłuszczu) powodowała biegunkę i ogólne złe samopoczucie. Objawy te ustępowały natychmiast po wzbogaceniu diety w tłuszcz.
http://www.jbc.org/content/87/3/651.full.pdfhttp://www.biblelife.org/stefansson2.htm"The chief purpose of placing me abruptly on exclusively lean was that there would be a sharp contrast with Andersen who was going to be on a normal meat diet, consisting of such proportions of lean and fat as his own taste determined.
As said, in the Arctic we had become ill during the second or third fatless week. I now became ill on the second fatless day. The time difference between Bellevue and the Arctic was due no doubt mainly to the existence of a little fat, here and there in our northern caribou - we had eaten the tissue from behind the eyes, we had broken the bones for marrow, and in doing everything we could to get fat we had evidently secured more than we realized. At Bellevue the meat, carefully scrutinized, had been as lean as such muscle tissue can be. Then, in the Arctic we had eaten tendons and other indigestible matter, we had chewed the soft ends of bones, getting a deal of bulk that way when we were trying to secure fat. What we ate at Bellevue contained no bulk material, so that my stomach could be compelled to hold a much larger amount of lean.
The symptoms brought on at Bellevue by an incomplete meat diet (lean without fat) were exactly the same as in the Arctic, except that they came on faster - diarrhea and a feeling of general baffling discomfort.
Up north the Eskimos and I had been cured immediately when we got some fat. Dr. DuBois now cured me the same way, by giving me fat sirloin steaks, brains fried in bacon fat, and things of that sort. In two or three days I was all right, but I had lost considerable weight."