INS and diabetes mellitus: Harati et al2 performed MR using a GWAS meta‐analysis from the Diabetes Genetics Replication and Meta‐analysis (DIAGRAM) consortium14 of 26 676 T2D cases and 132 532 control subjects for their T2D exposure and a GWAS meta‐analysis from the Meta‐Analyses of Glucose and Insulin‐related traits Consortium15 (MAGIC) containing variants associated with glycemic traits on up to 133 010 nondiabetic individuals.