Sami said he's a numbers guy and their food was weighed to the ounce, pre-packed for the entire row (no support!) film shows the macro % calculated for each. And they were in great shape still to sprint the last two days and had no fatigue. Sami talks about his running times during adaptation and after. There is a long standing podcast called Paleo Runner, he was interviewed there and many others mentioned in the film like Zack Bitter, Tim Olson, Ben Greenfield.
http://paleorunner.org