Well, I'm not sure but there is something that makes them bad. Did you know that McDonald's make the nuggets by torturing the chickens by locking up the chickens in a cage that is too small and cut their beaks off and they are dirty and sad.They leave those chickens dirty while cooked and chopped up. Don't eat those or you can get sick from the germs they got. A healthier place would be P.Terry's Burger stand. This restaurant doesn't torture the chickens like that. The let the chickens have a chance to live before they are burgers and they clean them up and use a bigger cage and they don't remove there beaks. They are nice to them on their last day alive. McDonald's is like a big bully to chickens. P.Terry's is healthy and they don't put the fries in that bad oil like the other ones do.
Ask them for a chart showing you what is in there food, by law they must produce one for you.. at least the law in most countries they occupy.. Although it might be named or labbled as something totally different