Indeed. Around the time that Supersize Me came out I was looking to lose some weight. To prove a point to my friends I did this by going on a fast food diet. Unlike Spurlock, I actually tracked my calorie intake and this affected what I ordered. However, every meal came from one of McDs, BK, or Wendy's as there was one of each in my neighborhood.

I did indeed lose the belly fat I wanted to shed.

I'm sure it wasn't the healthiest thing I ever did, but from the perspective of fat loss it worked AOK