what do okinawans eat
Okinawa is a region in the southernmost part of Japan where inhabitants have traditionally had the longest lifespans on earth. The Okinawan diet is made up mostly of vegetables and legumes, especially soy. It's low in calories and fat, and high in complex carbohydrates. Most of those carbohydrates come from vegetables, with only a small amount of grains or seeds, and no sugar or refined sweets.
In the past, less affluent Okinawans ate sweet potatoes. Lots and lots of sweet potatoes. Rice, especially white rice, was more expensive and was a bit of a status symbol: it was something consumed only by the wealthier folks.