Which diet won the fight between Keto and Mediterranea? 

Dan Buettner, author of "The Blue Zones Kitchen," explains the subtle ways to eat for longevity.

The contender: the popular keto diet, known for restricting carbohydrates to a precious few per day.

Learn how to eat for longevity with Dan Buettner, author of "The Blue Zones Kitchen."

Dan Buettner, author of "The Blue Zones Kitchen," explains the subtle ways to eat for longevity.

Here's Dan Buettner, author of "The Blue Zones Kitchen," explaining subtle ways to eat for longevity.

breast cancer as well as weight loss, stronger bones, a healthier heart and longer life 

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