[quote=Jim_Conrad]T
native americans can survive on bark, tree leaves, grass etc.
that fact has already been proven, so it's true.
Native Americans can not digest cellulose any better than any one else.
Starvation foods do not stop starvation. They will fill an empty gut and may offer a small amount of calories in certain situations, like the cambium under the bark, but for the most part you will still starve.
