Mark Bittman is the author of 30 acclaimed books, including the beloved 'How to Cook Everything' series. His TED Talk has more than 4 million views, and for more than two decades his popular and compelling stories appeared in the New York Times. Dr David L. Katz is the founding director of Yale University's Yale-Griffin Prevention Research Centre and founder/president of the True Health Initiative, a non-profit organisation that promotes healthy, sustainable diet and lifestyle. Katz is recognised globally for expertise in nutrition, weight management, and the prevention of chronic disease. He has a social media following of nearly 1 million.