Disclaimer: Individual results may vary. Testimonials apply only to the individuals depicted, and should not be considered typical. Each person is different and no results are guaranteed.

Doctors, farmers, chefs, and others weigh in on the controversial ketogenic diet and its potential to eradicate common illnesses.

People around the globe are combating illness through a paradigm shift in eating. And this simple change -- embracing fat as our main fuel -- is showing profound promise in improving the health of people, animals, and the planet.

Starring:

Pete Evans, William Davis