There is no doubt that P90X works more efficiently than other workout programs; the question that needs answering is why? The first component that makes it work is nutrition. The P90X system is not completely reliant on the exercises themselves, despite their importance. Losing weight and carving a beast of a body is dependent on 80 per cent diet. In order to attain chiselled abs, you need to give the body the nutrition that it requires to carve the muscles to perfection. Thereafter, the workouts themselves give you volume and intensity rolled into one.You don't just build muscle, you build your stamina and endurance as well. The 3 components are all important to help you attain significant fitness success in just 90 days. Remember, your goal is 90 days and what you need to do is follow the nutrition guide and the workout routines consistently within the specified period, then you will see lasting results enough to never think of touching junk food ever again.