Medications : Medications are usually the primary cause of a metallic taste in the mouth. Since you pretty well ruled out all medications, with the exception of a vitamin and black cohosh, medication would not be the cause in your case. There are also systemic diseases that can cause this symptom such as renal failure, cancer, scarcordosis, a vitamin b-12 or zinc deficiency and nervous system disorders. Environmental factors need to be addressed as well. Enhaling over a period of time, certain chemicals at work such as benzene, lacquers, gasoline, rubber dust all can cause a metal taste in the mouth. I would suggest you go see your doctor of internal medicine and let him do a physical on you to rule out any of the above. You have seen your dentist and all seemed fine. Get a physcial and see if they can pinpoint the cause.
Answered 12/19/2017
5.3k views
Many things: Salivary gland tumor, galvanic reaction, breaking down dental restoration, stevia consumption.
Answered 12/9/2013
5.4k views
Possible candida: I would suggest seeing an oral medicine dental specialist.
Answered 1/5/2019
5.4k views
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