How Monday and Tuesday will change your life. By now, you'll probably have heard about the fat professor, the whole-food dietitian and the Michelin-trained chef who flipped the food pyramid and brought butter back. Their first book What the Fat? has been a life-changer for thousands of people and now they're at it again. Back at the cutting edge of the latest science. This time it's all about not eating. WTF? Yep, you did read that right. This is a practical guide to get you started with intermittent fasting (IF) or super fasting (SF) as we now call it. Plus it comes with all the science and the recipes too.