Not all empires are evil. Well, not fast food chain empires at least. McDonald's has decided to do something for the common good, and not the good of their top brass' pockets - transfat oil will now slowly be removed from all US branches.

Transfat oil may enhance the taste of food, but it's also a known cause of obesity and artery clogging. Burger King was sued by a nutrition advocacy group for using these oils, and McDonald's definitely don't want to follow suit.

The transition will be done slowly to avoid a drastic change in taste of fried foods. It's pretty much the same oil in different blend and without the hydrogen additive, but it never hurts to make sure to deliver quality products expected from the worldwide chain.

McDonald's now uses uses a healthier oil in 3,500 restaurants (from 1,200 back in January) and will expand its use to all 13,700 locations within a year, said company spokeswoman Lisa McComb. If you think you're still eating in a place with transfat oil used, don't get paranoid yet. You can still lose extra calories by playing sports, or the Wii. Sounds like Wii Sports is hitting two birds with one stone.