What Causes a Metallic Taste in the Mouth?


A metallic taste in the mouth can be a symptom of an infection or another health problem. If it persists, consult your healthcare provider or physician. The condition may lead to difficulty swallowing and breathing. A metallic taste in the mouth may be caused by several factors, including certain medications, certain foods, or a reaction to an environmental factor. Symptoms may go away on their own without treatment or may improve if you stop taking the medication that causes the metallic taste.


If you experience a metallic taste in your mouth, you could have a condition known as dysgeusia. This condition occurs when the function of the kidneys is impaired, causing waste materials to build up in the blood. Dysgeusia may also be associated with fatigue and body pain. Some people may experience dysgeusia due to an infection or other medical conditions.

There are several treatments available for dysgeusia. First, you can try avoiding food that causes this taste. You can also take certain medications to prevent dysgeusia. Visiting a doctor will help you determine the best course of treatment.

Sinus infection

A metallic taste in the mouth is one of the symptoms of a sinus infection. Usually, it goes away on its own, but if it persists, you should see a doctor. Your healthcare provider, known as an otolaryngologist (ear, nose, and throat), can recommend a treatment plan to address the cause of your metallic taste. They may order imaging studies or perform a taste test to determine the source of your metallic taste.

In some cases, the cause of the metallic taste in the mouth may be a sinus infection or a cold or upper respiratory infection. This infection typically lasts for less than a month, but the virus can remain dormant in the throat or nasal cavities for months. To fully recover from this infection, the virus must be removed. During this time, the body works overtime to eliminate the virus or other invading organisms, causing inflammation in the body’s tissues. The inflammation process can disrupt the body’s normal functions and aggravate the symptoms of sinusitis.

Food allergies

A metallic taste in your mouth is a warning sign that you may be allergic to food. This condition is known as anaphylaxis. The symptoms include airway swelling, throat closure, and an increase in heart rate. If this condition persists for an extended period, you should seek medical attention immediately.

There are many different types of food allergies. Some are more severe than others. For example, some people are allergic to shellfish, tree nuts, tomatoes, peanuts, and fish. Other foods can cause allergic reactions, such as MSG (monosodium glutamate). In these cases, a person’s immune system releases chemicals and antibodies into defense mode. This can cause the symptoms to begin within minutes or even an hour of eating food.

Chemotherapy drugs

A metallic taste in the mouth is one of the side effects of chemotherapy drugs. Many patients do not eat much after chemotherapy, but it is essential to drink plenty of fluids to keep your body hydrated. You should also eat foods with high-calorie content to keep your weight up. While doctors are not sure why chemotherapy drugs cause this side effect, it is thought to be caused by the medication’s effect on cells in the mouth known as taste receptor cells.

To avoid the onset of the metallic taste, patients with the treatment should try to eat bland food and avoid strong-smelling foods. It is also essential to avoid cold foods since chemotherapy drugs can make you sensitive to cold temperatures. Other strategies for reducing the metallic taste include plastic utensils and glass cookware. Some patients may also find relief by eating sugar-free gum.

Periodontal disease

If you’ve experienced a metallic taste in your mouth, there are several possible causes. Some are harmless and easily treatable, such as a dental infections. Others can be caused by a medical condition like periodontal disease caused by poor oral hygiene. In the case of an infection, antibiotics may be required. Another possible cause of a metallic taste in the mouth is the use of lithium, which is prescribed for specific psychiatric disorders.

A metallic taste can also signify another medical condition, such as Sjogren’s syndrome, which affects the immune system and causes the mouth to become swollen and inflamed. This is not a cause for concern but should be reported to a healthcare provider immediately if the metallic taste persists or worsens.

Nutritional deficiencies

If you have a metallic taste in your mouth, you may have a deficiency of certain nutrients. Some of these deficiencies may be triggered by several factors. These causes include allergies to certain foods or substances, environmental factors, or medications. If your metallic taste lasts for more than a few days, you should visit your doctor. Your otolaryngologist, an ear, nose, and throat physician, can help diagnose and treat the underlying cause. Your doctor may order a taste test, which measures the response to different chemicals, and imaging studies to confirm the cause of the taste.

In some cases, a deficiency of vitamin B12 can lead to a metallic taste in the mouth. The vitamin is essential for red blood cell production and nerve health. When it is deficient, patients may also experience fatigue, headaches, and decreased appetite.

Immune system disorders

A metallic taste in the mouth can be a sign of several different immune system disorders. If the metallic taste is persistent, it could mean that you have an autoimmune disorder. It can also be a symptom of a food allergy or even anaphylaxis. If this happens, you should immediately seek medical help. Another reason why someone may have a metallic taste in their mouth is end-stage kidney disease. Fortunately, this symptom usually goes away when the underlying problem is resolved.

Sjogren’s syndrome is one such autoimmune disease that affects the salivary glands. Inflammation associated with this disease can cause the salivary glands to swell and produce less saliva and tears. This can lead to bad breath and dry eyes.

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