This reply was originally posted by user Lilies&Orchids; in ADDitude’s now-retired community.
My dd15 did this a lot more before she started medication, including a lot of pasta and potatoes (is popcorn a simple carb too?) It’s all a craving for a pick-me-up boost through sugar. But then you have the crash later mixed with teenage hormones and it ain’t pretty. The medication has reduced the cravings but I still hide the Halloween candy.
Definitely talk to her doctor about it. Her ADHD is looking for outside stimulation and by now she probably has a sugar addiction.
All good advice above. Significantly reduce the sugar availability in her life. It may be messy the first week if she has a bit of an addiction but she’ll settle into it and aside from being healthier, her ADHD symptoms will likely improve as well.