Creepy Mystery Ingredients

Many of us grab take-out for quick meals or snacks. We already know that may not be healthy, but industry insiders wonder if you've heard of these ingredients.

Duck Feathers and Human Hair -- A lot of baked goods use the chemical L-Cysteine to make the dough softer. That chemical is created in factories from human hair and duck feathers.

Wood -- Processed wood pulp, known as cellulose, is used in everything from cheese to salad dressing, from muffins to strawberry syrup.

Silly Putty -- The form of silicon used in Silly Putty is also the secret ingredient that keeps fryer oil from foaming.

Beetle Juices -- Some red food dyes are made from the dried, crushed bodies of dead beetles. Fast food restaurants put this stuff in some meats, sausages, marinades, bakery products, toppings, juices, and more.