Good question. They presumably developed their large livers over thousands of years. I don't think it makes sense to try to do that within a single lifetime.
ZC is even more dangerous than I realized. If anything, I would have been even harsher about it in the past if I knew what I know now.
The larger Inuit livers provide them with more glycogen, which I'll bet kept them from running out of glycogen during the night if they were well fed, even though they were often not getting much carbs. Doesn't make sense to try to do what they did with a small liver.
Plus, even Eskimos didn't pass up Eskimo potatoes and probably also ate the fermented stomach contents of animals, at least a little bit. And who knows how important their high meats/fish/birds were, which were not prepared the way Aajonus claimed, as Eric pointed out.