John Mackey, co-founder and CEO of Whole Foods Market, and author of “The Whole Foods Diet”, joins Dave to discuss his new book. There are two main, simple rules at the root of John’s diet that he says will boost overall health and longevity – and eating whole, real foods is the most important tenant. From the healthiest types of nutrients, to a debate on fats vs. starches, to the benefits of fasting, you’ll want to listen in on this lively discussion.