Michael Pollan professsor in food journalism advises: Eat food. Not too much. Mostly plants. This sounds easy, but often isn't. Furthermore he explains that we vote with our fork 3 times a day.
Pollan wrote the Omnivore’s Dilemma, A Natural History of Four Meals and Food Rules: An Eater's Manual. Last year, he was named one of Time magazine's 100 Most Influential People in the world.