P90X Nutrition... IDK why it's not working...

Have you been taking measurements? Often times with P90X you're replacing fat with muscle. While both weigh the same, muscle is more dense (i.e. takes up less space). In addition, if you don't have a heart rate monitor (with strap) I would recommend that as it can have an effect on your overall net consumption of food if you don't know how much you're actually burning. Lastly, most of the results with P90X tend to come in months two and three. For me it started to drop a lot quicker around week 6. As you build more lean muscle your metabolism will increase and thus start burning fat at a good clip.

I also peaked at your diary and a lot of your food intake is from processed sources. A lot of Oscar Meyer, Muscle Milk, Protein Shots and Creatine Drinks. If you can try to eat more natural foods when possible. Perhaps a simple change would be to add some eggs in the morning for breakfast. Cottage cheese is a good protein source as well and then have your morning protein shake a little later for a snack. Also, your profile says you're 190 so if that's true then you should be eating 2,400 calories vs. 1800. You may be under eating for a program like P90X.

Lastly, we're all different and I too found it very difficult to consume the amount of Protein in Phase 1 of P90X. There is no rule that says you need to stay there either. Some people just don't respond to low carb/high protein diets. If you feel you're one of those, feel that you lack energy in your workouts then by all means move on to the Phase II macro levels.

Hope that helps.

Are you logging your food some place else, because it looks like you haven't been logging at all on MFP. You may be consuming too many calories.

I did 2 rounds of P90X and didn't really lose much weight. I find their meal plan can be too much food and it isn't personzlized for you. If you follow MFP and make sure you track "all" your food and excercise, you should give it at least 3 months before you start seeing a difference. Everybody is different and eating clean will make a big difference also.

This may or may not be good advice, so I'll just give it as my own personal experience.

When I started P90X, I was 5' 10", 185 ... plump. I knew more than anything, I had to drop weight to make the exercise easier, so I put a lot of energy into eating clean 50/30/20, but at only 1300 cals a day, upping my intake at month 2 to 1630. I averaged 90,000 calories burned per month including workouts and daily activity while consuming approx 50,000 on average. That's a 40,000 calories deficit per month or 10,000/wk, not the recommended 1500. I'm sure most nutritionists would have a fit as well as some on here.

Yes, I steadily lost weight without feeling weak or starving. But that's just me. After 90 days, I was down 0ver 30 lb and felt great, however I noticed in the last 2 weeks, I began to lose size and reps. I assume I got lean enough that my body was turning to my muscle for fuel because my fat was no longer available to burn.

I've now started round 2 and upped my cals to 2283. So far I feel like I'm over consuming, but I'm hanging in there for 30 days to see where I'm at. After a week on round 2, I see no change in reps or size ... so who knows whats right and whats wrong.

You have to do what works regardless of what the program lays out for you. If it seems like way too much food for you, it may very well be. Eat to fuel your body ... listen to what its telling you and bump the cals if you feel like your bonking or can't do the reps.