a report published by Farmers Weekly in 2007, the quantity of milk used by McDonald's could have accounted for as much as 5% of the UK's organic milk output.
McDonald's announced on May 22, 2008 that, in the United States and Canada, it would switch to using cooking oil that contains no trans fats for its french fries, and canola-based oil with corn and soy oils, for its baked items, pies and cookies, by year's end.
With regard to acquiring chickens from suppliers who use CAK or CAS methods of slaughter, McDonald's says that it needs to see more research "to help determine whether any CAS system in current use is optimal from an animal welfare perspective.