Do some really live on the "Whale Blubber Diet"?

[Green Thumb]

Theirs a few people out their who have a completely sugar free diet and that is called the whale blubber diet. I haven't been able to find any examples online. Just curious of how successful a diet of just whale blubber is?

 

[Solstice Goat]

I'm guessing that Eskimos eat a LOT of animal fat.