Here's an interesting article from NPR about where cellulose comes from.
http://www.npr.org/sections/thesalt/2014/07/10/329767647/from-mcdonalds-to-organic-valley-youre-probably-eating-wood-pulp
Here's an interesting article from NPR about where cellulose comes from.
http://www.npr.org/sections/thesalt/2014/07/10/329767647/from-mcdonalds-to-organic-valley-youre-probably-eating-wood-pulp