Gustatory hallucinations are most commonly associated with:
Temporal lobe epilepsy
Grand mal epilepsy
Anxiety disorders
Tobacco dependence
Gustatory hallucinations are most commonly associated with temporal lobe lesions, especially uncinate gyrus seizures. Patients repo experiencing bitter, sweet, salty, tobacco-like, metallic or indescribable strange tastes. They are found in 4% of seizure patients with temporal lobe foci. Ref: Clinical neuropsychology 4th Ed By Kenneth M.Heilman, Page 488.