"Michael Pollan, in his New York Times article "Unhappy Meals," exhorts us to "Eat food. Not too much. Mostly plants." That's seven words; I'll reduce it to three: eat real food. The "not too much" will take care of itself. And the "mostly plants" isn't a worry if you eat the plants as they came out of the ground, or the animals who ate the food that came out of the ground--because they ate plants."