The first thing The 1000 Calorie Challenge is very clear about is the fact that it is not a quick fix, no effort weight loss program. It requires a choice to be made by any person wanting to use the program and that choice entails the will to put in effort and be dedicated. However it does not require a certain level of fitness to start so any person from any age can start with the program. This weight loss system uses a very simple principle namely if more calories get burned than a person consumes fat must be burned. The 1000 Calorie Challenge weight loss program uses two very unique systems which enables the quick lasting results the program claims to deliver. The first system works by manipulating the Reps (number of repetitions), Resistance (the load used for each workout), Rest (the length of the rest period between workouts) and Rounds (the number of times a workout is completed) to achieve quick results. The second system is based on progressing from standard sets through tri sets to the ultimate insane circuit. Joel Marion and Arnel Ricafranca are the creators of The 1000 Calorie Challenge. Between them it's claimed they hold degrees in health, nutrition and exercise science and trained thousands of clients over many years. It must be mentioned that this weight loss program does definitely not require a person to go on a crash course starvation diet as it is a well known fact that this type of diet does not work at all. Instead the program uses calorie burning workouts together with a unique calorie burning diet. Included in the package is a free exercise video database that shows and leads a person through every exercise as well as a resistance band version of all the workouts. The complete system consists of ten components and claims to have been tested on more than thirty people to serve as prove that the product actually works. (c) Reviewed Best 2009 2010