Thanks, Captain.
A broad DCCT (Diabetes Control and Complications Trial) study conducted in the United States, with a population of people living with Type 1 diabetes, established that intensive insulin-based treatments (pump or at least three insulin injections per day, with a view to returning blood sugar levels to a normal range) which allowed for better control over blood sugar levels, had also caused an average weight gain of 4.8 kg compared with traditional treatments (a maximum of two insulin injections per day and broader blood sugar targets).
I have a friend with T1 that used to skip meals to stay skinny after switching to a pump caused weight gain that couldn't be exercised off. This is what young girls do.
Are you a Mattel employee?