What Causes a Metallic Taste in Your Mouth?

There are lots of reasons you may have a lingering metallic taste in your mouth, from medication to poor toothbrushing habits. Once you figure out why it's happening, there are often easy steps you can take to get rid of the problem.

Oral Health

You might need to step up your dental hygiene. Brush and floss regularly to avoid problems with your teeth and gums, like gingivitis, periodontitis, and tooth infections. Those conditions can all put a bad taste in your mouth.

If poor oral health is the cause, you could also have swollen, bright, or dark red gums or gums that bleed easily. You might also have bad breath.

If you have these symptoms, see your dentist for a professional cleaning and ask if you need a prescription to treat any infections.

Colds and Other Infections

Have you been feeling under the weather? Colds, sinus infections, and upper respiratory infections can change the taste in your mouth. If this is the cause, you'll also have symptoms like a runny or stuffy nose, sore throat, and cough.

Rest, drink plenty of fluids, and take over-the-counter pain relievers if necessary. The metallic taste should go away once you're better.


Drugs like antibiotics can give you a metallic taste. Other possible causes in the medicine cabinet include:

If the metallic taste bothers you, talk to your doctor, but don't stop taking your medication without their approval.


Your prenatal vitamins, iron, or calcium supplements could be the cause. Multivitamins with copper, zinc, or chromium can leave a metallic flavor. So can cold lozenges that are made with zinc.

The good news: The metallic taste should go away soon after you take the pills.


Heartburn, acid reflux, and indigestion could be responsible for a metallic taste. Other symptoms you get with these conditions are bloating and a burning feeling in your chest after eating.

To treat the underlying problem, avoid rich foods, eat dinner earlier, and take antacids.

If you keep getting indigestion, have a hard time swallowing, or are in serious pain, see your doctor. The taste in your mouth should go back to normal when your indigestion is under control.



It's not a surprise that the taste in your mouth might shift when you're pregnant.

You could develop a metallic taste at the beginning of your pregnancy. It should be temporary and go away on its own.


Things often taste different when you have dementia. The part of the brain that controls taste sometimes stops working well.

Cook with strong or sweet flavors, and try different types of foods and drinks to help increase your appetite.

Cancer Treatment

Bitter or metallic tastes that linger in your mouth are a common side effect of chemotherapy and radiation. It usually goes away when you finish treatment.

In the meantime, switch up your foods to help mask the problem. Add tart ingredients like lemon juice, vinegar, or pickles to your meals. Spices, herbs, and sweeteners bring strong flavor. Try eating more frozen or cold foods. Swap metal utensils for wood or plastic.

WebMD Medical Reference Reviewed by Sabrina Felson, MD on April 29, 2019



UK National Health Service: "Metallic Taste," "Indigestion."

Cleveland Clinic: "8 Possible Causes for That Metallic Taste in Your Mouth."

Mayo Clinic: "Periodontitis," "Gingivitis," "Common Cold."

Michigan Medicine Rogel Cancer Center: "Food Just Doesn't Taste the Same."

Dana-Farber Cancer Institute: "How to Reduce Metallic Tastes During Cancer Treatment."

Cancer Treatment Reviews: "Metallic Taste in Cancer Patients Treated With Chemotherapy."

Ohio State University Wexner Medical Center: "What Causes a Bloody or Metallic Taste in Your Mouth During Workouts?"

CDC: "Antibiotic Prescribing and Use in Doctor's Offices."

Alzheimer's Society: "Poor Appetite and Dementia."

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