This is by no means a scientific study.
I was prescribed Dexedrine 15mg for add towards the end of september. Two weeks later I was prescribed Adderall XR 20mg.
I thought my bodybuilding lifestyle was over. The first couple of weeks eating was a chore. After that I was always hungry. I've gained 5lbs since then. My diet has been decently clean.
Inb4flame. I'm just trying to cover this widely talked about topic.
*Note: I stared Layne Norton's hypertrophy routine roughly around the same time as I was prescribed adderall.