What the World’s Oldest People Eat

3. Misao Okawa was the world's oldest living person till she passed away in 2015 at the age of 117. Okawa is the oldest Japanese person ever and also the oldest person ever born in Asia. In her Interview for the Japan Times she said, 'Eating delicious things is a key to my longevity.' She revealed that she ate lots of sushi and slept for eight hours every day.