Same, I took it for a bit to help with focus. It absolutely killed my appetite, especially when I first started taking it - once my body adjusted a little I was able to eat more normally. Same with Adderall, I have to remind myself to eat on that shit. No big deal for me since I prefer to graze anyway, small bites throughout the day work better for me than big meals at certain times. But I have had the thought that it's only a matter of time before this stuff starts getting marketed as miracle weight loss drugs.