plant-based with lots of nuts and some fish; (2) low in proteins, sugars, and saturated/trans fats; and (3) high in complex carbohydrates coming from beans and other plant-based foods. Most of these centenarians ate only two or three times a day, ate light meals in the evening, and were in many cases done eating before dark. They also consumed a limited variety of foods—ones typical of their homelands. In some cases they did modify their diet. For example, Okinawans used to get most of their calories from sweet purple potatoes, but today that is far less common.