30 Dangerous Facts About Processed Food

16. Feathers & Human Hair- What’s The Connection

L-Cysteine is commonly found in protein powders, commercial bread, and in a host of other bakery food items. But we bet you did not know that this amino acid is derived from duck feathers, cow horns, chicken feathers, and even human hair. What if we told you that this very important ingredient was also what made doughnuts and processed bagels extra tasty?

This amino acid acts as a kind of dough conditioner for bakery items and is responsible for helping to extend the life of all over-the-counter processed food items.