Parmesan cheese from many top brands may contain wood byproductCare for some wood shavings on your pasta? Americans who think they’re sprinkling Parmesan over their spaghetti are also getting a hefty dose of cellulose - a wood byproduct — from many top brands. A study by Bloomberg News reveals that Walmart’s Great Value 100% Parmesan Cheese is roughly 8% cellulose and Jewel-Osco’s Essential Everyday 100% Grated Parmesan Cheese is almost 9%. The report follows a lengthy federal investigation into a Pennsylvania company called Castle Cheese, whose 100% “parmesan†contained no actual parmesan, but was comprised of Swiss, cheddar, mozzarella and...