Longevity researcher Dan Buettner writes in his book ‘Blue Zones Kitchen’, “None of the blue zones centenarians I’ve ever met tried to live to 100. No one said at age 50, “You know what, I’m going to get on that longevity diet and live another 50 years!” They don’t count calories, take vitamins, weigh protein grams, or even read labels. The centenarians celebrated food. Let’s take a look at what the world’s longest-living people eat. Centenarians from different parts of the world mostly consume plant food or plant products. These include beans, yams, sweet potatoes, fruits, nuts, whole grains and seeds. Leafy greens such as spinach, kale, beet, turnip tops, chard and collards. The longest-living people also consume a lot of fruits.