The last few years have seen a resurgence in the use of fasting. Fasting is an ancient practice tied to religions and culture. In many ways, how and when we eat developed based on the availability of food.

My guest is Dr. Jason Fung, a nephrologist and expert in intermittent fasting for the treatment of diabetes and weight control. His first argument, however, is a simple one - fasting is old, safe, and simple. One doesn't need to do extensive planning, dietary food restrictions, or break the bank.

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