I might not be the best one to answer this, because I didn't really bother reading the eating plan for P90X, and I know that I don't follow it. However, in my opinion, I learned how to eat more properly already, by eating more frequently, in smaller portions, and I have some of my own opinions as well. So take this for whatever you think it's worth. If you learn to graze, you will feel that difference in your energy just from that alone. Learn to eat better foods, in proper portions, and at the right times. It sounds daunting, but it's not that hard if you plan for it right and it helps you from overeating. My typical eating looks like this; Breakfast: I like to get protein and fats in the morning, so I either go with a couple of eggs, or cashew butter on toast. I'd like to trim more of the carbs out of the cashew butter option, but haven't found a good substitute. I might have some blueberries as well. Mid-morning: My snacks typically range to any of these options: protein shake, string cheese, good handful of almonds, granola bar, cottage cheese (sometimes with fruit). Lunch: Right now I'm big on wraps. They're low on carbs and still give me a "sandwich" type meal that I can easily add veggies into and not feel like I'm eating a salad that I'm going to load up on sugary dressing to enjoy. Some meat (go for variety, I vary tuna, or roast beef, or chicken), small piece of cheese, mustard, mayo and some veggies (whatever I have, lettuce, onions, carrot slivers, cucumbers, etc). I don't throw a ton of meat or cheese on, I try to use only a couple of pieces of meat and eat less of a lunch than I would without the snacking. Mid-day snack, choosing from the list above, trying to limit carbs and sugars. Dinner: I'm trying to weed out pastas and focus more on meats and veggies. I still end up often with a potato, a meat protein, and something veggie. Last night we had fajitas and some beans. Tonight is going to be goulash with ground turkey, limited egg noodles, filled up with some veggies (peppers, zucchini, onion, tomatoes). Dessert: Almost exclusively a protein shake, though I have messed with making healthier dessert things. My keys; I don't really bother counting calories, I focus on staying mindful of how much fuel I'm putting in, and making sure it fits with how much my body will be burning, so I'm not storing it. I'm not anti-carb, but I do try to limit grain based carbs and get more carbs from veggies. I focus on having some protein in any meal. My weakness is sugar, but I work to trim that out as well. I'm not afraid of most fats, I think as a culture we've totally been raised to mis-understand fats. Mostly watch out for trans and some saturate fats. Fat in general is just stored energy. Hope that helps and makes any sense!