Tim Ferriss, author of "The 4-Hour Workweek" and one of my idols, just posted pictures of foods he eats on his cheat day. You can take a look here http://su.pr/4qZ836. I think it's a joke. No wonder his diet works for him and not for me, his cheat days are healthier than my regular days were! (The last sentence may be exaggerated).
 
Here is the last cheat day I had, which was during my 30-day-trial as a fruitarian.
 
Ok, I admit I also ate one serving of vegetables. But healthy stuff is the main food of Mr. Ferriss on his cheat day! Almost every container says "Organic". The only unhealthy (and thus real cheat) foods he has consumed are:
 
- 1 pizza
- 1 candy bar
- 2 pieces of pastry
- some coffee
- noodles
- fruit juice could be considered unhealthy, they do have lots of carbohydrates
- some cookies
- one teeny, tiny, little serving of ice cream
 
Now I'm not saying that what he does is a bad thing. Why cheat with bad, unhealthy foods, when you like healthy choices? The thing that bugs me is that he claimed in the post concerning his Slow-Carb-Diet that he ate candy to make himself sick. I quote:

Rule #4: Take one day off per week

 I recommend Saturdays as your “Dieters Gone Wild” day. I am allowed to eat whatever I want on Saturdays, and I go out of my way to eat ice cream, Snickers, Take 5, and all of my other vices in excess. I make myself a little sick and don’t want to look at any of it for the rest of the week."

 
Guess I took him for his word there. When "going out of ones way" and "making myself a little sick" means eating 1 candy bar, 1 pizza, drinking some coffee and juice and having a tiny portion of ice cream, I did it all wrong.
 
Maybe he should explain that on his diet, cheating is really not much cheating but moderation. For the record: I gained about 5kg on the Slow-Carb-Diet while feeling horrible all the time and having huge cravings. He's close, though. What's missing is EAT A LOT OF FAT! Tim Ferriss' Slow-Carb-Diet is really a Low-Carb-Low-Fat-Diet. And eating only protein is boring and just doesn't work for me in the long term (>1 week).