The P90X diet provides you with the right combination of foods so that your body has the energy it needs during the program. It’s broken down into 3 phases.
While P90X is a 90 day workout you may decide to alter your choice and timing of the phases for what works best for you.
Phase 1: Fat Shredder
This stage of the P90X diet focuses on a high protein, and is designed to rapidly reduce your body fat percentage. As this happens your available energy should also decrease. So, you shouldn’t extend this phase unless you aim to drop more fat, and if you feel like your energy level is enough to push hard during your daily workouts. If you already have low body fat and looking to gain more energy you should consider shortening the length of this phase. To determine your body fat currently, and during the program you may want consider purchasing our Body Fat Tester.
Phase 2: Energy Booster
This phase of the P90X diet is a more balanced mix of carbohydrates and protein with a lower amount of fat to achieve additional energy for performance. If you’re feeling energized, and making progress you are free to continue this phase for as long as you like.
Phase 3: Endurance Maximizer
Is an athletic diet An athletic diet of complex carbohydrates, lean proteins, and lower fat with the emphasis on more carbohydrates. It should only be initiated if you are seriously pushing your body. This stage must be earned. On the flip side some people hesitate to ever enter into this phase in fear of gaining weight from the additional carbs. Surprisingly they find that once they try this phase of the P90X diet they end up with even more energy allowing them to really “Bring it!”.
The 3 phases of the P90X diet are flexible and aim reduce fat, provide energy and give you long term success.

Jun 22, 2011 @ 15:01:32
Hey, i bought p90x a week ago and just received it. Im reading the nutrition guide and I came across something that made me confused. Im about 5’11 and weigh 243 and want to loose approx 40 to 50lbs. I did the calculations,ei RMR and the other that calculates which nutrition phase is right to begin with. Here is where confusion sets in. My nutrion level, thats counting a RMR of 2430, DAB of 486, to a total energy amount of 3516, to my nutrition level 3. Even though im rr
Tryin to loose the maximum amount of fat i need a maximum of 3000 calories? Any clarification would be of greatest appreciation.
Hello Wes,
the amount of calories needed are based on your weight and your daily activity burn. If you are heavier, you will use more calories than a lighter person to do the same exercise. The calculation takes into account the amount of calories you need just to function for the day as well as how many you will burn while doing P90X. There is no way you should eat 3000 calories if you are NOT doing the P90X if you want to lose weight. Try it out and see how it goes and if you feel that you are eating too much, jump down to level 2. If you feel you have enough energy at level 2, feel free to stick with it.
-Mike
Aug 29, 2011 @ 14:16:25
Hi, my husband and I started the P90X program 4 weeks ago and are now starting Phase 2. We started the Nutrition plan halfway through Phase 1. I am wanting to be sure I am on the right level for each phase in the nutrition plan. I am 5’4″ and weigh 186 lbs. My goal weight is 135 lbs. When doing the formula I came in at a Level 2 however I am trying to lose weight. Is it better to continue on Level 1 as I have done for the last 2 weeks or is Level 2 really where I need to be to shed the weight? Also, I am wondering about soda. I have Zevia which is a Stevia sweetened soda, an alternative to diet soda. Will this hinder my results? I cannot have tea and only a small amount of coffee so am looking for a 0 calorie beverage that’s doesn’t cost an arm and leg to buy and enjoy every day. Thanks and hope to hear back very soon.
Dec 11, 2011 @ 17:18:05
HI, I am starting the p90x in one week and about to go shopping for the right healthy diet for me. But my questions is that I am 21 and i’m about 108lb and i am 5’2 so I am a small girl. And I don’t want to loose any weight. I want to get bigger and have a woman’s body instead of a little girls. So what should I do? I don’t want to loose in the first phrase .. so if you cold please help that would be great. I want to actually gain weight and turn it into mussel.