Eat More to Loose Weight

Couple things that I see as I've gone through P90X twice. Most of the results (in terms of weight loss) do not come until about the middle of month 2. If you've measured you should see a difference. Since it's resistance intensive you're replacing fat with muscle. The scale will not move much especially if you've been sore as your muscles will retain water to repair themselves. Muscle is denser than fat so while 1lb of fat is the same weight as 1lb of muscle the space that muscle occupies is much smaller. Think of it like bricks and feathers. You'd need 1 dump truck to haul 1 ton of bricks but would need 50 to haul 1 ton of feathers.

It can get a little tricky with MFP as their method is to use your BMR + Activity Level + Exercise Calories - Weight Loss Goals but with P90X you figure out your caloric needs (you're Level I - 1800). I'm taking a guess that when you figured this out you were higher but reduced to the 1800 as they suggest to lose weight. All good so far.

Assuming your MFP setup provides you with the 1800 Calorie target all is good there but go back into the Goals and do "Custom" so that you can change your Macro nutrients to 40% Carb, 40% Protein, 20% Fat. This is where you should be in Month 2 from a Macro perspective. If you wish to burn more fat you can stay on the Month 1 plan (lower carb) and change those to 30%/50%/20%. Keep an eye on this and if you see the workouts becoming more difficult you may need more carbs for fuel. At that point, I'd change to the 40/40/20. Now you should have the right macro levels to shoot for and either enter your exercise calories but ignore eating back your calories (reduction already done with the P90X method) or simply don't log your exercise at all. Just eat your 1800 as the P90X nutrition says.

From there use the Portion Plan from the Program (Month 1 Portion in Parenthesis if you go the lower carb route):

Protein: 4 - 3 oz servings per day...most lean meats including chicken, turkey, fish, shellfish, lean red meat, eggs and protein powder will provide ~100 calories each 3 oz serving (Month 1 Portion is 5 - 3 oz servings)

Fats: 1 - 1 Tbsp serving per day...good fats such as avocado, olive, canola and flaxseed oils (Month 1 - same)

Carbs: 2 - 2 servings of 200 calories each. Examples: Whole grain brown rice, quinoa, pasta, oatmeal, 1 sm potato/med sweet potato, 2 slices whole wheat bread, etc. Check the serving sizes but most of these are about 1 cup (Month 1 = 1 serving)

Dairy: 2 - 2 servings of 120 calories each. Examples: 1.5 slices low-fat cheese, 1oz 1% cottage cheese, 8 oz skim or 1% milk, 8 oz nonfat yogurt, etc. Again check the serving sizes of what you get. Most should be in this range. (Month 1 = same)

Fruits: 1 - 1 fruit with 100 calories. Examples: 1 med apple, 1 med banana, 1 med grapefruit, 1 cup grapes, 1 large orange, 1 cup berries, 1 cup watermelon or other melon. (Month 1 = same). This was my least favorite part by the way.

Veggies: 2 - 2 servings 50 calories per serving; Generally about 1 cup of most veggies; 2 cups of leafy veggies (Month 1 = same)

Condiments: 1 - 1 serving 50 calories; This is your dressings, marinades, etc. I always used light balsamic vinaigrette

Snacks: 3 - 3 servings approximately 100 calories each; You can double them if you want a Protein bar, nuts, etc.