In this study, the authors pointed out that the relationship was not applicable to non-European populations or for people with very low concentrations of vitamin D. On the contrary, in non-Caucasian people (i.e., among Egyptian children with type 1 diabetes), vitamin D receptor single-nucleotide polymorphisms causing low vitamin D status were associated with an increased risk of type 1 diabetes [16]. The gene discussed is VDR; the disease is type 1 diabetes mellitus.