Eat yourself to longevity

The Japanese are more likely to reach 100 years old than anyone else in the world, a fact that some researchers attribute to their diet.

CAN you eat your way to a century? I am not referring to test cricketers, I’m talking about the Japanese diet. Or the Sardinian diet. Or the Ikarian diet. Or any one of half a dozen regional, usually traditional, ways of eating that have been credited with keeping an improbable proportion of their populations alive beyond the age of 100.