Imagine you are 300 pounds, work out 6 days a week, on a low calorie low fat diet but you can't lose the weight. One of the most influential health and wellness figures of our time knows this scenario personally. So he did something about it and shared it with the world. Dave Asprey founder of the Bulletproof diet, innovator of Bulletproof coffee, and a New York Times best selling author speaks to Dana about the world's war with fat. Dave explains why we need fat to lose weight and optimize our health. Dave, also known as the guru of fasting, shares some of his most powerful biohacks, including how to age without gaining weight, how to lose weight and keep it off, and how to have sustained energy. It is so simple, wait to hear what Dave has to share.