Now I like to look into things first so I spent the weekend looking into these types of diet plans. I found a similar one (by accident, thought it was the same plan at first). Beyond Calories seems to follow the same principals. There are 3 food categories: 1) Fruits, 2) Proteins, and 3) Vegetables. You eat 6 meals a day but they come from specific food groups. As you see there are no grains, but it is only for 10 days. You can continue on doing more cycles or take a break between cycles. This also boasts high weight loss.
I will admit I am curious. I always lose weight slowly and never the amount diet plans promise. I am going to try this plan but I will be sticking to more real foods only, therefore some of the food options I will not be eating. The thing with this plan is that you get to choose which foods you want to eat from the groupings, so you don't need to eat things you don't like or don't want to eat.
I will post my starting weight tomorrow morning and again in 10 days, we shall see how I do. I will also post daily regarding what I am eating. Feel free to check out the above link and follow along.