I realize I never did a final result post.
Well in the end I lost about 8.5 lbs in 3 weeks. Not too bad.
I would recommend the 21 day challenge to anyone looking for a jump start to their diet. I wouldn't buy all the supplements, and I don't think a cup of coffee or some equal in your green tea would derail your progress.
If you have the willpower- I don't believe in the food of MFF...just cutting down to 1,200 calories a day.
Again, it's a good jump start. But if you can just count calories you'd be fine. In the end it cost about $700 just for 3 weeks of food- that's pretty steep. But I personally do better one any diet or gym routine if I am spending more money. I never cheated on this program because I didn't want to waste $700 and 3 weeks of my life. Just like I'm sure to go to Shred415 4x a week when I'm paying for the monthly unlimited. I make sure to get my monies worth.