Michael.Arnstein is a fruit-powered ultra-marathon runner, one of the fastest on the planet. He's run over a HUNDRED of 100 miles races, even two 100 milers in one week! He ran many of those races while raising 3 young children and running a company.
All the while, fine tuning his diet from vegetarian, to vegan, to fruitarian, to mono-meal fruitarian. He's incredibly healthy, giving his mostly fruit diet credit for becoming super-human.