Actually, there are higher incident of B12 deficiency in Indian vegetarians as found by a study done in late 90s (sorry I don't have specific reference). India

Actually, there are higher incident of B12 deficiency in Indian vegetarians as found by a study done in late 90s (sorry I don't have specific reference). Indians dont have a practice of regular/ preventive doctor visits, annual checkup and diagnostic testing. They only go to doctor when there are significant medical issues. So these issues are not found until they morph into bigger problems. I have a quite a few younger cousins who died in their 30's. Not a single one ever was tested for cholesterol despite poor eating habits and obesity. Recently I noticed a few startups in India focusing on diagnostic testing. But their user base seems to still be elderly than young people.