Fast food is bad if you eat it often. As a treat here and there it's not bad, especially if you go for healthier options such as getting food from a sub place or getting smaller portions. You can also get water to drink rather than drink soda with your fast food meal. Many places such as Wendy's have small meal deals where you get a small burger, small nuggets, small fry and drink. It's less calories than what you'd get from a medium meal.