The largest concentration of healthy 100-year-olds is in Okinawa, Japan. The people there eat a diet high in grains, vegetables and fish, and low in eggs, meat and dairy. In the U.S., Daisy McFadden, who is 101, follows suit. She regularly eats oatmeal and fruit for breakfast, a salad with chicken or fish for lunch, and steamed vegetables and lean meat for dinner. More From Forbes: America’s Healthiest Cities World’s Most Dangerous Places to Breathe The ‘Healthy’ Choices That Are Costing You The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.