Forget the rest, take Vit D3, page-7

After posting my reply to mickban last night the penny dropped: Indonesia is the world's largest moslem population. Neither male nor female are famous for baring skin to the sun so there would have been more than enough D₃ deficient cadavers to test.

The difficulty would be to find those with high levels but maybe there are enough of them who have taken to shorts in Bali and other tourist hot spots.

Maybe someone should run the tests in Hawaii.