Is Feather Gluten Free?

Feathers are structures that grow from the skin of birds and are primarily made up of keratin, a type of protein. While they are not typically used as an ingredient in food products, feathers can sometimes be processed into ingredients like L-cysteine, which is used in the production of bakery products. Feathers are more commonly found in non-food products such as medications, supplements, cosmetics, and cleaning supplies.