People have been shipwrecked at sea for a mere five days and resorted to cannibalism. Yet people can go many days on a fast.
The book "Blatant Raw Foodist Propoganda" said it best. All the animals in the woods are raw foodist, even in the winter. How often do you see a sick deer?
In our lifetime the last people from a tribe by Vancouver, BC. These people never wore shoes, always slept on the ground. I guess its rather like the Nazirites, or the, whats there name?, Rabinites(?).
The breakfast cereal probably had BHT, and since the cardboard wasn't meant for eating was just wood pulp. In fact native americans used the inner bark of trees for baby formula. Cardboard makes great insulation, never thought about food. I think you just solved the urban homeless problem ;)