@north,
Incredibly ill-informed. The evidence is that Franklin's 1845 expedition failed because they were the self-inflicted victims of long-term, pernicious lead poisoning from the lead solder in the cans of food they used.
Long, long before Franklin's final expedition set out, William Parry had successfully overwintered in the artic region of North America precisely because he took heed of the diet of the Eskimos (Inuit) he encountered. That was in 1819. Franklin himself first ventured into arctic North America in 1819, leading an overland expedition. That was more than 25 years before his final, fatal expedition. On the overland expedition, he relied upon local aboriginal Americans to do the hunting for his expedition, and to find and cache food for them. They would not have survived without the aid of the Amerindians.
So, i guess you really don't know what the hell you're talking about, huh?