In California, the study showed, a 30-year-old Adventist male lives 7.3 years longer than the average 30-year-old white Californian male. A 30-year-old Adventist female lives 4.4 years longer than the average 30-year-old Californian white female. “If you go to Adventists who are vegetarian,” said Fraser, “it becomes 9.5 years longer for men and 6.1 years longer for women.