That being said there is some strong evidence that the _Okinawa diet_ is extremely good for the health.

Actually, I tried to find out what the Okinawa diet is, but I found contradictory information. For example, some sources say that it is nearly vegetarian, some say that they eat significant amount of pork and cook on pork lard. Also, I found some articles about research on Okinawa centenarians genetics and some genes were identified that correlate with longevity. So it might not be just about the diet.

I would appreciate any links on Okinawa diet, as long as they can be considered credible.