I’m terrible about snacking while studying. Part of it is that I need to be constantly doing something while studying. So what helps me is chewing gum, sipping tea, squeezing stress balls, knitting (if I’m watching a video or otherwise don’t need my hands). I also keep a lot of self care supplies at my desk, like cinnamon lip balm, peppermint aromatherapy, lavender lotion. A variety of things that satisfy the sensory inputs. So when I feel an urge to snack I engage with one of those things instead and then the moment passes and I forget about snacking.