Coronary artery disease, medical scientists have long suspected, is closely related to diet. So is diabetes. These suspicions have now been strengthened by close observation of one of the Orient's most ancient communities, preserved like a fly in amber for some 2,500 years. The observed are Jews who migrated from Yemen to Israel; the observers are European-trained immigrants to Israel.
By their own traditions, the Yemenite community is descended from Jews who fled Palestine when the First Temple was destroyed in 586 B.C. For the most part oppressed economically and socially and isolated in...