Yes, arsenic. It’s a known toxin and carcinogen, yet it’s commonly used as an additive to chicken feed. Why? It’s been fed to chickens since the 1940s to promote growth and kill parasites.
Sound shocking and dangerous? Maryland Delegate Tom Hucker thought so, too. So in 2010, he introduced a bill in the state legislature aiming to prohibit poultry companies from adding this toxic drug to feed given to chickens who are raised for their meat.