This is a topic that comes up quite frequently in diving circles, mainly because of older divers or others who are most susceptible. Check and see how much you know about diving and diabetes and whether or not it's considered an absolute contraindication for diving anymore. Take the DAN quiz!
https://www.diversalertnetwork.org/files/DiabetesSummaryGuidelines.pdf
https://www.diversalertnetwork.org/files/DiabetesSummaryGuidelines.pdf