Carl Franklin and Richard Morris talk to "The Fastmaster," Dr. Jason Fung about intermittent fasting (IF), extended fasting (EF), diabetes, insulin, metabolism, and doing the simplest thing that works. A word of warning - Dr. Fung uses salty language for emphasis.

Obesity and diabetes are epidemic, we all agree. Dr. Fung focuses on insulin and insulin response rather than on carbs as being the only thing that raises insulin. In his clinic, he has hundreds of patients that are all controlling their insulin, and therefore their diabetes. Fasting is one of the most effective methods that they use.