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A New Therapeutic Option for Weight Loss

Why Fasting Can be a Game Changer

Dr. Jason Fung
7 min readJul 11, 2018

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Megan Ramos and I started using intermittent fasting in the TheFastingMethod.com sometime around 2013. At the time, the entire notion of fasting smelled faintly of quackery. The prevailing wisdom was that skipping meals was an entirely suicidal idea, from a weight standpoint. After all, everybody ‘knew’ that skipping meals would make you so ravenously hungry that you would be helpless to resist stuffing donuts by the box into your mouth.

Dr. Michael Mosley and myself

Indeed, when we started, I had never heard anybody talk about fasting. It just sort of occurred to me one day that if you wanted to lose weight, then maybe just not eating was a good idea. I was a physician, and I ask people to fast all the time. When people go for surgery, they need to fast the night before. When people go for a colonoscopy, they need to fast for 24–48 hours. When people go for fasting bloodwork, they need to fast. So, I knew that fasting wasn’t completely out of the question.

But nevertheless, my initial reaction to this thought was that it would never work. But then I paused. I thought to myself ‘Why wouldn’t it work?’ There really was no reason. I also had a good understanding of human physiology and knew that the body stored fat in case there was nothing to eat. So, if we gave our body the chance, it would have to burn this fat that was so carefully stored. So, I set out to research it. There was almost nothing written in the last 40 years. A couple of body builders had written some excellent material on intermittent fasting, but I was more interested in using fasting for therapeutic purposes of curing disease. In 2012, Dr. Michael Mosley at the BBC had produced a great documentary on the subject. But that was about it.

So, we just started treating patients with various fasting protocols. And the results were simply stunning. We had patients reverse their long standing type 2 diabetes in mere months. We had patients lose hundreds of pounds. Not everybody did it, of course, but those that did, generally lost weight. After all, if you don’t eat, you…

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Dr. Jason Fung

Nephrologist. New York Times best selling author. Interest in type 2 diabetes reversal and intermittent fasting. Founder www.TheFastingMethod.com.