Kenya's a poor country with a history of turmoil that barely averages 2,000 calories per day, so no wonder they have a not-so-great health record for the average Kenyan.
However, the elite runners average 3,000 calories, the recommended amount for an active male.
Their high-carb/low-fat diet helps keep them lean, just what an endurance athlete wants.
"The studied Kenyans had less mass for their height, longer legs, shorter torsos, and more slender limbs. One of the researchers described the Kenyan physical differences as "bird-like," noting that these traits would make them more efficient runners, especially over long distances."
Where are all the elite Paleo runners and cyclists? Oh wait, there are none, because elite endurance athletes know the best calories for endurance are carbs.