When researchers at Stanford went to the press with the conclusion that organic food isn't really any better than conventional food, they cast doubt on just how smart they are at Stanford after all. The researchers reviewed 237 food studies before achieving their "ah-ha" moment. Of those food studies, 223 examined the levels of nutrients and contaminants in organic food versus conventional products. The other 17 studies followed populations on organic produce versus conventional diets. The studies ranged in length from two days to two years. Jon Barron considers these recent food studies that test the definition of the organic food definition and the differences between organic and conventional food in this podcast.