Metallic taste in the mouth: what’s behind it?

Taste disorder: A metallic taste can also indicate illness.

Taste disorder: A metallic taste can also indicate illness. (Source: webphotographeer/getty-images-bilder)
A metallic taste in the mouth can be unpleasant. However, the causes for this are usually harmless. In some cases you should still see a doctor.Very bitter, sour or salty: Sometimes you have an unpleasant taste in your mouth, usually after eating certain foods. However, if you notice a metallic taste in your mouth, this may need to be checked by a doctor. This is a form of taste disorder called dysgeusia.

If there is a metallic taste in the mouth, the nerves that are important for the perception of taste are damaged or temporarily restricted. This results in false signals being forwarded.

Metallic taste in the mouth: This could be behind it

Finding the cause of the metallic taste is relatively complex, as very different factors can trigger it. One obvious reason is a small, bleeding wound in the mouth, as the iron contained in the blood is said to have a metallic taste. Poor oral hygiene can also trigger dysgeusia. There are also the following causes:


A possible explanation for the unnatural, metallic taste could be diseases of the upper respiratory tract, such as a sinus infection . The sense of taste often changes due to colds. But once the illness is over, the metallic taste also disappears.

If the metallic taste persists for several days, it could also indicate more serious health problems. These include neurological disorders such as dementia , autoimmune diseases, liver or kidney problems and untreated diabetes.


Allergies can also be the cause. If the metallic taste occurs after eating certain foods, it may be a sign.


Medications are also a trigger for a metallic taste in the mouth. This can occur, for example, with medications for heart disease or depression, antibiotics or drugs for kidney stones. However, the effect usually disappears when the medication is stopped. However, this should never be done without medical advice.

Hormonal changes

Hormonal changes also sometimes cause a metallic taste. Hypothyroidism , pregnancy or the onset of menopause are also common causes.

Chocolate: A few bites can make an unpleasant taste disappear.
Chocolate: A few bites can make an unpleasant taste disappear. (Source: Eva-Katalin/getty-images-bilder)

What helps against the metallic taste?

You can try various remedies to make the taste disappear quickly. Including:

  • a glass of salted water
  • a piece of chocolate
  • a slice of lemon
  • Brush your teeth or use mouthwash
  • Lozenge or chewing gum

These remedies can help the taste in the mouth return to normal. However, if there is a serious underlying cause, it can persist.

When is a doctor’s visit necessary?

If the metallic taste persists permanently or occurs in combination with other symptoms, a doctor should be consulted. An examination can clarify the form and cause of the taste disorder. Depending on the diagnosis, the treating doctor will then suggest appropriate treatment.


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