Okinawa diet
The Okinawa diet describes the traditional dietary practices of indigenous people of the Ryukyu Islands (belonging to Japan), which were claimed to have contributed to their relative longevity over a period of study in the 20th century. == Relative longevity == As assessed over 1949 to 1998, people from the Ryukyu Islands (of which Okinawa is the largest) had a life expectancy among the highest in the world (83.8 years vs.