I am assuming this is referring to medicated ADHD. Stimulates are often associated with decreased hunger. When I was on vyvanse I completely lost my sense of hunger and only went off my bloodsuger. Like "damn I feel dizzy and zombie like. Food time"
I think it has to do with the medicine. I'm on a less common ADHD medication and I don't get like this. Unless I'm working for some reason đ¤ˇââď¸