The Fast 800 Series

From #1 New York Times bestselling author Dr. Michael Mosley comes the revolutionary Fast800 Diet—an easy-to-follow, science-backed program to help you lose weight fast, boost your health, and transform your life. Millions of people worldwide have lost weight and reversed disease using Dr...

Is it possible to eat normally, five days a week, and become slimmer and healthier as a result? Simple answer: yes. You just limit your calorie intake for two nonconsecutive days each week - 500 calories for women, 600 for men. You’ll lose weight quickly and effortlessly with the FastDiet.

A keto diet—where you flip your metabolic switch, going from burning sugar to burning fat for fuel—leads to significant weight loss and other potential health benefits. But one of the challenges of a standard low-carb, high-fat keto diet is that it can be hard to stick to. Dr Michael Mosley's Fast 800 Keto is both more effective than a conventional keto regime, and healthier and more sustainable.