Book excerpt: New in paperback, from one of the world's foremost alternative health authorities: a guide to using time-restricted eating and ketogenic principles to promote weight loss, treat disease, and optimize well-being. "You can always trust Dr. Joseph Mercola to be on the cutting edge! Follow this enjoyable read to do keto and fasting the right way, and avoid the common pitfalls, many of which will shock you." -- Steven R. Gundry, M.D., New York Times best-selling author of The Plant Paradox series; Medical Director, The International Heart and Lung Institute We all know that food is medicine--yet going without food is one of the single best things you can do for your health. Short, doable fasts, when strategically timed, are an incredibly powerful metabolic intervention, dovetailing perfectly with a ketogenic diet to activate your body's fat-burning mode. This in turn can ward off insulin resistance, reduce oxidative stress and inflammation, optimize brain function, prevent neurological problems, support weight loss, and more. In this in-depth yet accessible guide, now available in paperback, New York Times best-selling author Dr. Joseph Mercola explores the profound health benefits that result when ketogenic living and well-planned fasting are combined. Topics include: How our food is making us sick and what we can do about it The physiology and mechanisms of fasting, including stem cell activation How the cyclical ketogenic diet--with fasting included--differs from the conventional keto diet How fasting works and how safe it is for you How regular one-day fasts support fat burning and detoxification while minimizing hunger and side effects How to monitor your progress with lab tests And much more