When it comes to Okinawa's diet of longevity, less is more and more is less.

Today, we met up with Dr. Craig Willcox on a Quest for the world's healthiest foods and some suggestions for eating our way into the next century. Willcox, a bookish looking professor with sharp features and round, Harry Potter glasses, is one of the world's top experts in Okinawan longevity. He, along with his twin brother, Brad, and their mentor, Dr. Suzuki, have studied centenarians here for over a dozen years. Their work has yielded countless academic articles and two books, The Okinawa Diet and the New York Times best-selling Okinawa Program. Most of what the world knows about Okinawan longevity comes from this trio, and in many ways, their work inspired the Blue Zones Quest.