Additives

I know the FDA allows for many substances in your food that doesn't have to be counted.
Like so many bugs, and of course, rodent turds. Can't get rid of all that if you are in a large manufacturing building. That's a fact that has been known for years and we have placed in the backs of our little minds when eating Jif. But now all the rage is about your protein that is added.
L-cysteine is a protein additive, as well as a dough conditioner. It is made
from dissolved human hair or duck feathers.
Human hair and duck feathers??? Not so sure about that, sure it is probably sterilized which of course the bugs and turds are not, but still the bugs and turds are not purposely add, the hair and feathers are.

So when do you get fed up and stop eating their food, and make your own.