diane - Welcome to 3FC. There is a pretty active MRC group here on 3FC.
I think people have had success on the program but I've never heard of any proof to back up that someone using the program would lose 3 x faster than someone who diets and exercises. That would be a very hard statistic to prove. Also, I don't know if using their supplements is 'proven science' although it is proven that if you create a calorie deficit, you will lose weight.
I'm glad you like the program and that it works for you but honestly, supplements generally have little effect, if any, on weight loss. Structured programs on the other hand can often help those that need them.
You can't out-exercise poor eating habits.