Organic, hormone- and antibiotic-free meat is always your healthiest option when it comes to animal protein. But this stuff is pricey. To cut back on costs, make two meals a day meatless. Experiment with a "meatless monday" dinner if you're up for it, instead focusing on alternative sources of protein like beans, tofu, whole grains and eggs. (You'll see health benefits from this in addition to saving money!) Figure out how your body thrives and make it work for you.