Okinawans vs Adventists
In one of his videos > Dr. Greger compares diets and lifestyles of the long-lived Okinawans and vegan and vegetarian members of the Seventh Day Adventist Church living in California:
“The one population that lives even longer than the Okinawa Japanese don’t just eat a 98% meat-free diet, they eat 100% meat-free. The Adventist strict vegetarians in California, with perhaps the highest life expectancy of any formally described population”.