I'm late to the new thread party. Congrats to everyone that made it through a round of P90/P90X/Insanity and also to those who are giving this a shot!
I finished a round of P90X last year (after three restarts) and just started P90X2 last night. I'm 6'2" and was right around 235-240 before I started, after the round, I was down to 215, since then I'm now back up to 225. I tried doing an Insanity/P90X hybrid program but at some point during the program, I screwed up my knee and had to stop. I'm really excited to get through P90X2 as the moves and equipment appear to be quite refreshing after doing the same thing over and over with P90X.
For those wondering if the nutrition has any impact on your results, I would give a resounding yes. I didn't follow the nutrition guide or maintain a restrained diet and after my round of P90X, while I felt a lot stronger and flexible, the visual results weren't exactly where I thought they would be. This time around I'm keeping a log of my intake and trying to watch the variety of foods that I consume. The worst thing is to put 3 months of effort in to not achieve the optimal results that you could have had, if you would've just been more conscious of your diet.
My diet thus far (I know it needs refined, appreciate feedback!)
Breakfast:
1.5 cups of Life cereal with Fat Free Skim Milk: 250 calories
Lunch:
Salad (Lettuce, Fat Free Feta Cheese, Fat Free Dressing, Sliced Almonds): 150 calories
Fiber One Brownie: 90 calories
1 oz of Beef Jerky: 80 calories
Dinner:
Varies (as the wife is kind enough to cook), usually includes a veggie: ~700 calories
Snack:
Fiber One Brownie: 90 calories
or Jerky: 80 calories
After-workout:
Syntha-6 Protein Shake with Fat Free Skim Milk: 300 calories
Total: ~1650 calories/per day