Bayramci et al.’s study (2017) [33] reported that genotype 22 and allele 2 of CAPN10 SNP-19 were associated with T2DM risk in Turkish patients; however, an earlier study in Turkey found no relationship between Calpain 10 SNP19 and DM but reported an association of genotype 22 with the glycaemic index [34]. Here, CAPN10 is linked to diabetes mellitus.