If you Google "Sonic gluten free" the first link is a PDF of their Allergy information.
No
Not sure but its not the place you go to for healthy meals. It is awesome comfort food.
Not really
I can't imagine there are very many. Maybe some of the desserts and some of the potato products. Check the allergy information like Jasmine suggested.
I wouldn't think so, most things are processed. You could ask to have your burger without bread. That might be the only option.
No, maybe the grilled chicken, but none od it is prepared separately
Not that I know of
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