Carlos is now 25. The essential need to inject insulin was made very clear to Carlos as he transitioned from the young person's clinic to the adult diabetes clinic.

Without it, he risked having uncontrolled high sugar levels again and becoming unwell. He was offered a choice of how he wished to use insulin.

The treatment regimen choices were to either inject a mixed insulin twice daily, or to use 2 different insulins each day.

He asked for information on each regimen.