Eventual confounding factors possibly explaining overweight were found in five of 28 overweight cases: two patients had a diagnosis of type I diabetes in childhood and were insulin dependent and three patients had a diagnosis of autoimmune thyroiditis during CD diagnosis work-up and they still were not on levothyroxine treatment at the first CD visit time, perhaps explaining their weight increase due to an initial hypothyroidism. Here, INS is linked to type 1 diabetes mellitus.