Chances are that your holiday meals weren't completely natural. But where is the dividing line between 'real' food and some sort of artificial pseudo-food-substitute? In this segment, Ira talks with author Michael Pollan about his latest book, "In Defense of Food: An Eater's Manifesto." He suggests that people can improve their eating tremendously through relatively simple rules, including 'Don't eat anything that your great-grandmother would not recognize as food.' Pollan boils down his philosophy of nutrition to just seven words: 'Eat food. Not too much. Mostly plants.' We'll find out more about his ideas, and how to apply them to your local grocery store.
Produced by Annette Heist, Senior Producer