The exercise portion of it is quite brutal, but very effective. I would say that most people could not finish the workouts for a few weeks because they are so hard. The P90X Nutrition Guide is actually very good and it gives you a few different options to follow. This makes it easier for the people who are following the program.
The P90x nutrition guide follows a three phase system like most popular diets. These phases should last 30 days. The only variation is if you want to lose a little more body fat you can stay in phase one a little longer. The name of the three phases are fat shredder, energy booster and endurance maximizer. The diet coincides with the workout program.
Nutrition is indispensable for everybody. Especially for the people who engage in a body training program. Without adequate nutrition, you will not obtain a good workout result. The famous programs P90X and Shaun T insanity are successful for their reasonable diet plan for different people. The P90x nutrition plan is designed for the people who are using the P90x 90-days fitness workout program. Proper nutrition plan will enhance your workout effort. With this nutrition plan, you can achieve more with the same work. So the beginners should pay more attention to the following six big nutrition principles from p90x in their exercise progress:
During the first phase you are just getting used to the workouts and you will be eating fewer carbohydrates than the other phases. Then in the energy booster you will get more carbohydrates because you will be exerting more energy during the workouts. Then you will get even more during the endurance maximizer because you will be at peak intensity during the workouts.
Personally we think that the P90X Nutrition Guide is one of the best there is. We think it definitely works best when you couple it with an extreme workout program like the one P90x has. If you follow both of them you will be in the best shape of your life for sure.