I know they try to care about "good food" because they got a lot bad press and image for their fast food. But i dont see them being too much involved. I mean when you know about pink goop, chicken nuggets made from the whole chicken, including inner organs, bones and... you dont want to think about.
https://docakilah.wordpress.com/2011/05/11/can-you-guess-what-mcdonald%E2%80%99s-food-item-this-is/McDonalds surely will always take the cheap option. Only if their image is hurt they try to change something. A little bit.