During the K23 period – long story – I became interested in the role of vitamin D in diabetes. Working with wonderful colleagues, I received NIH funding (R21 and R01 mechanisms) to further test the hypothesis that vitamin D is linked to diabetes risk. One thing led to another and before I knew it, I was leading D2d, a multi-center clinical trial to test the safety and efficacy of vitamin D supplementation in reducing risk of diabetes in people at high risk. D2d consumes most of my time while awake (and occasionally my non-awake time) but I remain active in all three areas of academic medicine (clinical care, research and teaching), a task which is becoming increasingly challenging. Clinically, my focus is in diabetes care but I try to remain current in other endocrine areas.