Cheese is one of the unhealthiest foods you could possibly eat and yet Americans gobble it down it by the truck load. Why? Because it's also extremely addictive and causes narcotic-like cravings and reactions in the brain. In fact, the cravings can be so severe it's called "dairy crack." "The Weight Loss Champion" Chuck Carroll and Dr. Neal Barnard spend the hour examining its potentially deadly effects. Plus, an interview with vegan NASCAR driver Landon Cassill.