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How many calories to eat for P90X
For the P90X nutrition plan, do you calculate the plan for calories at the weight we are at, or the weight we want to be or something in-between? I am only one week into the program, I orignally read the program to eat at your current weight. I asked earlier on another board, and it was suggested to eat at the weight you want to be.

I have read that you want to guard agaist eating to little, as your body goes into starvation mode, you will not loose weight.

The nutrition guides is not clear on that issue (at least when I read it). I have read though some other posts and the advice I have picked up seems to suggest to eat more than less.

My current weight would suggest a level III nutrition plan, and my ideal weight is a level II nutrition plan. So far I have attempted to eat at a level II, and I have not been hungry or energy starved (though a little sore from the workouts emoticon ) If anything, I feel like I eat more food than when I started the diet, minus all the cookies, shakes and other high carb junk food.

Thanks!

PX90 Nubbie
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RE: How many calories to eat for P90X
7/18/09 11:24 PM as a reply to jgeno.
jgeno:
For the P90X nutrition plan, do you calculate the plan for calories at the weight we are at, or the weight we want to be or something in-between? I am only one week into the program, I orignally read the program to eat at your current weight. I asked earlier on another board, and it was suggested to eat at the weight you want to be.

I have read that you want to guard agaist eating to little, as your body goes into starvation mode, you will not loose weight.

The nutrition guides is not clear on that issue (at least when I read it). I have read though some other posts and the advice I have picked up seems to suggest to eat more than less.

My current weight would suggest a level III nutrition plan, and my ideal weight is a level II nutrition plan. So far I have attempted to eat at a level II, and I have not been hungry or energy starved (though a little sore from the workouts emoticon ) If anything, I feel like I eat more food than when I started the diet, minus all the cookies, shakes and other high carb junk food.

Thanks!

PX90 Nubbie



I have this same question. It seems logical that the numbers are calculated on ideal weight versus current weight, since the RMR is the number of calories needed to maintain your current weight. With current weight I would be level III as well but with ideal weight I would be level II which is what I have been using. There are no issues with energy levels--plenty of energy; of course I am sore the next day after the workout but I figure that is normal. I would still like to know if I have done the numbers correctly.
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RE: How many calories to eat for P90X
7/18/09 11:42 PM as a reply to jgeno.
You would generally calculate for your current weight, not your target weight. However, the RMR calculation in the nutrition guide is pretty course (to keep it simple). It does not adjust for height, age, or gender.

You might want to calculate RMR using something like the Mifflin Equation (used by many calculators online). If you know your actual bodyfat percentage, the Katch-McArdle equation can be used, which might be even more accurate. Then plug that number in for the spot where you take 10 x Weight in the Nutrition Guide.

You may find that level II is correct. But all these calculations are still just estimates. The most important things you can do getting started are to eat clean, hydrate, and hit your macronutrient targets.

The calculation does create a modest calorie deficit (that's why you round down the the nearest level). It can seem like a ton of food at first. But as you keep going, your apetite is going to grow.

Good Luck!
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RE: How many calories to eat for P90X
7/20/09 2:39 PM as a reply to jgeno.
Technically, the program was designed to have you eating at your current level, but if level two feels right, you might stay there, although if you plateau, this is probably why.
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