The question most asked about this book is "Why 30 Days?", and it is a fair question. As you've seen from the title of this book, it's all about following a plant-based diet for 30 days. Why 30 days? Why not just one week, why not forever? The truth is we are all raised within a certain culture of food. And, for most people, this means that we are very used to eating meat. It can be quite daunting to think about completely giving it up forever, but at the same time it takes some time to adapt and get a real feel for a new diet. This is why we recommend 30 days: it's long enough to make a difference and help you see results, and it's short enough not to be too daunting for those who have never tried this kind of diet before, yet long enough to break your old unhealthy eating habits. However, you are free to set your own rules. Perhaps you'll start with just a few plant-based days per week and go from there, maybe you'll only eat plant-based at home and still eat a standard diet when out. Whatever works for you! Many people even find they want to continue once the 30 days is up. And why not; this is your new diet, so why not stick with it. That's great too and can be a great benefit to your health and environment, so just see what feels right. Above all else, we hope the information and diet tips in this book will set you up for a more varied diet, now and in the future leading to better health and longevity.