My first reaction was: "Ewww gross! I am NEVER buying grated cheese again!" Checked the bag of shredded Quattro Formaggi in the fridge, and sure enough, it lists cellulose as an ingredient.
But then I read the article again:
"Powdered cellulose: minuscule pieces of wood pulp or other plant fibers that coat the cheese and keep it from clumping by blocking out moisture."
And I am once again disappointed with slanted sensationalist reporting. The headline shrills WOOD PULP IN YOUR FOOD OMG, and then the article explains that the cellulose used could be "wood pulp or other plant fibers". Like what? Rhubarb? Broccoli stalks? Wheat husks? Geeez, thanks for telling me NOTHING useful.