His main subjects, the Tarahumara in Mexico, eat pinole (a flour from crushed toasted maize) and chia (think chiapet), which the author attempts to purchase, before realizing he’d probably get tired of the diet quickly. He consults a nutrionist. She asks, “Have you ever had salad for breakfast?”

It’s not the most dramatic part of the book, and the author quickly speeds on to detail his theory on running and the evolution of man. But the breakfast line always stuck with me even as I began to run for the first time in 5 years. It’s such a simple thing to add more vegetables to the day. I mean, I already dislike my breakfast routine, so why not give it a shot?