NHS website

Metallic taste

NHS Choices information on the possible causes of a metallic taste in the mouth

22 March 2018


A metallic taste is not usually serious and can be a symptom of many different things. Treatment will depend on the cause.

Common causes of metallic taste

Cause What you can do
Gum disease ↗ regularly brush your teeth, use dental floss, have a check-up at the dentist every 6 months
Taking medicine, like antibiotics speak to a pharmacist for advice – don't stop taking prescribed medicine without medical advice
Cancer treatment, like chemotherapy or radiation therapy eat stronger tasting food ↗, like ginger, spices and boiled sweets
Colds, sinus infections and other airway problems the taste should go away once the problem has cleared up
Indigestion ↗ the taste should go away when you treat your indigestion
Being pregnant the taste is usually temporary and clears up by itself

Sometimes, a metallic taste can be linked to a problem with your sense of smell ↗.

See a GP if:

  • the metallic taste doesn't go away
  • it has no obvious cause