dietary factors such as salt and caffeine are not causes of vertigo but they could be triggers or make it worse especially if the vertigo is caused by a migraine. i suggest finding out the cause of the vertigo and going from there. more reading: causes of vertigo lightheadedness and vertigo: topic overview caffeine and salt intake does not cause vertigo. in some people it may act as trigger factors. one must check for the causative factor for vertigo and get proper healthcare advise from physician.
does caffeine and salt cause vertigo and will eliminating it help it go away