I recently caved and watched the latest season of Alone, which takes place in the Canadian Arctic, on Netflix. It basically matches the non-canine related aspects of this article.

Contestants were sent home months-in, despite having excess meat stores from hunting/fishing, because of dangerous weight loss levels. They were literally starving to death even while eating excessive amounts of protein.

There’s a separate question of how “true” the show is (looking at you Bear Grylls!) but I believe the diet aspects were done in coordination with doctors.