I don't think so, but that is my opinion only.
Do you intend to continue taking Metabolite for the rest of your life? If not, I would not recommend using it to lose weight. Generally speaking (though this isn't carved in stone), if you add something or take something away to lose weight, you have to continue for the rest of your life.
You don't actually want to "Lose weight fast". If you're losing more than 2lbs. a week, you're losing more than fat. You're losing things like water and muscle and both are very important. If you lose muscle, you will slow your metabolism down and make it that much easier to regain the lost weight.
The 20g of carbohydrates is not a "for life" thing either. Atkins recommends an induction period of like two weeks. I'm sure there is a reason his suggested induction is this short.
IMO, the best way to lose weight and then keep it off, is to make small changes to your current lifestyle that you can maintain for life. Things like eating smaller portions of the same food (a single cheeseburger and small fry instead of a Big Mac and Biggie Sized fry) and adding in exercise.
Are you exercising?
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The right diet plan??? 
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