An very underestimated nutrient is fat. The Wikipedia entry on "rabbit hunger" has some very graphic descriptions: https://en.wikipedia.org/wiki/Protein_poisoni

An very underestimated nutrient is fat. The Wikipedia entry on "rabbit hunger" has some very graphic descriptions: https://en.wikipedia.org/wiki/Protein_poisoning https://en.wikipedia.org/wiki/Protein_poisoning The human body can do without carbohydrates (the Inuit have some evolutionary adaptations towards a mostly-meat diet), but not without proteins or fats.