New research published in Diabetologia and presented at this year’s annual meeting of the American Diabetes Association in New Orleans, Louisiana, U.S., shows that excessively high body mass index (BMI) in adolescents is linked to development of type 1 diabetes (the form of the condition more associated with autoimmune complications), not just the type 2 form usually associated with excess weight. The study is by Professor Gilad Twig, Sheba Medical Center, Israel and colleagues.