I know one expedition, forget which one, in which men ate rabbits for some time. There were lots, but died because rabbits don’t have salt or something like that. I’d have to search for it, but I remember that from being a kid.
These men going off into the unknown, into a frozen hell on earth, is a good glimpse into the bravery of the times.
Compare the men then to now and then we see how things got as bad as they are.
Sounds kind of like Franklin’s first arctic expedition.
https://en.wikipedia.org/wiki/Coppermine_Expedition_of_1819%E2%80%9322
No one seemed to be able to hunt and there was a least one murder/cannibalism event.
Rabbit is not a complete protein.