OMG we routinely eat DEAD animals and we eat CINNAMON which IS in fact TREE BARK, and MAPLE SYRUP which oozes out of trees.
Why are people squeamish about cellulose?
Years ago there was a bread made of wood pulp, it was delicious and low carb, ppl were outraged and got it tossed off the market
http://www.nytimes.com/1985/10/16/garden/wood-pulp-as-fiber-in-bread.html
Oy!