Here's an easy rule of thumb to live by!
Here's some great advice from the Seattle Cancer Care Alliance. Dietary change is hard, and sticking with a diet 24/7/365 is even harder. Dr. Korde's One Thing is fruits and veggies. They are always in the house, and I don't feel like I've had a good meal if 50% of my dinner plate does not have veggies on it. It could be salad, broccoli, zucchini or mushrooms, but it's always there!