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What are some possible causes of a metallic taste in your mouth?

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One of the most common causes of a metallic taste in a person's mouth is medication, according to Healthline. Medicines such as antibiotics, blood pressure medicine and glaucoma medicines can all cause side effects that include a metallic taste in the mouth.

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What are some possible causes of a metallic taste in your mouth?
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Chemotherapy and radiation therapy may cause a metallic taste in a person's mouth as well, states Healthline. This side effect is often called "chemo mouth," and as of 2015, studies suggest that taking vitamin D or zinc before treatment can prevent the taste from occurring. Another possible cause of a metallic taste in a person's mouth is sinus problems. Since the sense of taste is closely related to the sense of smell, when a person's sense of smell becomes distorted, it can affect her sense of taste. Common sinus problems that may cause this change include sinus infections, colds and allergies.

Some pregnant women also experience a metallic taste in their mouths, according to Healthline. As of 2015, the cause is unknown, but doctors believe that changing hormones are to blame. Additionally, a metallic taste in a person's mouth may be the sign of a food allergy, especially if it occurs after eating shellfish or tree nuts. Also, injury to the central nervous system may distort a person's sense of taste, causing a metallic taste to appear in a person's mouth.

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