o   The Impact of Genetic Testing for Type 2 Diabetes on Health Behaviors: “We will evaluate the impact of genetic testing for type 2 diabetes on psychological, health behavior, and clinical outcomes.” (ClinicalTrials.gov Identifier NCT01060540) The genetic test consists of SNPs in the TCF7L2, PPARG and KCNJ11 genes. This evidence concerns the gene KCNJ11 and type 2 diabetes mellitus.