They do not put any bird feathers in bread.
However L cysteine which is an amino acid that is used as a dough conditioner in bread can be derived from bird feathers, human hair and pig bristles as well duck feathers but the feathers and hair are not directly put in the bread.
L cysteine is derived from a variety of sources including pig bristles, human hair and duck feathers and is generally regarded as being safe for human consumption by the FDA.
If you're concerned about any L Cysteine in bread you can buy fresh bread from a local baker as it's not an additive in flour or you can make your own homemade bread.
Human hair is also not used in chocolate making.
It's a myth that human hair is used in chocolate but in reality no chocolate is made using any human hair or any hair.
Chocolate is made from cocoa beans, cocoa butter, sugar and sometimes milk and not hair is involved in the making of the chocolate.
Using human hair or any other hair in chocolate making would be unsafe and unsanitary and would not be allowed and is not allowed by food safety regulations.
And while some food products contain L cysteine which is an amino acid that is found in hair and is used as a dough conditioner and flavoring agent in some food products the L cysteine can also be produced synthetically without deriving it from human hair.
Some other countries such as China have been known to use human hair for the L cysteine in food products including bread but in the United States the hair is not used.
L-Cysteine an amino acid is often used to prolong shelf-life in products in China such as commercial bread comes from human hair.
It has been reported that most of the hair used to make L-Cysteine comes from China, where it is gathered from barbershops and hair salons.
Any L cysteine in chocolate is made synthetically and not derived from any human hair or other hair.
The idea that human hair is used in chocolate making is a common misconception that stems from the use of L cysteine that is derived from hair.
But that is all it is, is a misconception and myth.