Any meat, fish or other food which shall be treated with or shall contain any of the salts of sulphurous acid or other poisonous preservation or coloring matter are hereby declared to be unwholesome and any person, firm or corporation who shall sell or offer to sell, serve or deliver or cause the same to be done, any meats, fish or any other kind of food in any form therein and containing any of the salts of sulphurous acid or other poisonous preservative or coloring matter, shall be deemed guilty of an offense.
(`90 Code, § 11-24)