The proportion of GLP‐1 expressing cells did not correlate with BMI (all r = 202; p = 0.237; controls r = −0.600, p = 285; all patients r = −116, p = 0.533; T2D r = −248, p = 0.338, patients, no T2D: r = 0.231, p = 0.427). This evidence concerns the gene GCG and type 2 diabetes mellitus.