n the Bone Broth Diet, Dr. Kellyann couples delicious bone broth with powerful fat-burning foods and intermittent fasting that empowers you to achieve spectacular weight loss and more youthful-looking skin in just 21 days. The Bone Broth Diet also focuses on improving gut health and reducing inflammation through intermittent fasting and balanced nutrition– whole foods and collagen-rich bone broth—while detoxing from sugar, grains, and other toxins.