'Fruitarian' eats 25 lbs. of fruit daily

SGMD Gupta Fruitarian_00032130.jpg
SGMD Gupta Fruitarian_00032130.jpg

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    'Fruitarian' eats 25 lbs. of fruit daily

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CNN's Dr. Sanjay Gupta talks to Michael Arnstein, 'The Fruitarian,' an elite endurance athlete with a controversial diet