Benefits of Fasting for Weight Loss Put to the Test

For more than a century, fasting—up to 382 days without calories—has been used a weight loss treatment.

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This is the 6th video in a 14-part series on fasting for weight loss. If you missed the first five, they are:
• The 3,500 Calorie per Pound Rule Is Wrong (
• The Reason Weight Loss Plateaus When You Diet (
• The New Calories per Pound of Weight Loss Rule? (
• The Benefits of Calorie Restriction for Longevity (
• Potential Pitfalls of Calorie Restriction (

Coming up next are:
• Is Fasting Beneficial for Weight Loss? (
• Is Fasting for Weight Loss Safe? (

And the series continues with:
• Alternate-Day Intermittent Fasting Put to the Test (
• Is Alternate-Day Intermittent Fasting Safe? (
• Does Intermittent Fasting Increase Human Life Expectancy? (
• The 5:2 Diet and the Fasting-Mimicking Diet Put to the Test (
• Time-Restricted Eating Put to the Test (
• The Benefits of Early Time-Restricted Eating (

If you don’t want to wait you can watch them all now on a digital download (

My next book, How Not to Diet, is all about weight loss and comes out in just over a month. I can’t wait for it to hit the shelves, and you can pre-order it here (

Have a question about this video? Leave it in the comment section at and someone on the NutritionFacts.org team will try to answer it.

Want to get a list of links to all the scientific sources used in this video? Click on Sources Cited at You’ll also find a transcript and acknowledgements for the video, my blog and speaking tour schedule, and an easy way to search (by translated language even) through our videos spanning more than 2,000 health topics.

If you’d rather watch these videos on YouTube, subscribe to my YouTube Channel here:

Thanks for watching. I hope you’ll join in the evidence-based nutrition revolution!
-Michael Greger, MD FACLM

Captions for this video are available in several languages. To find yours, click on the settings wheel on the lower-right of the video and then "Subtitles/CC."

Image credit: ID 95839 / pixabay


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