This is a bad idea, man. You don't need a system. You need to eat real food. Find the time for Food, Inc., and In Defense of Food: An Eater's Manifesto by Michael Pollan, You can eat bread and potatoes and burgers and whatever you want, as long as it's real. No refined and enriched and processed foods and sugars. You don't need to cut out proteins, and you don't cut out carbs. You want and need to enjoy the food you're eating. You don't need an "eat less" mindset. Just eat food, and as a consequence of doing that, you'll find yourself eating less because real food fills you up faster, and keeps you full longer. And, because you're a busy guy, you should be mindful of your eating. Take time to really taste your food, and enjoy your meal.