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11 Causes of a Metallic Taste in the Mouth

11. Food Poisoning

Poisoning from certain types of food can leave a metallic taste in the mouth. Spoiled fish is the most likely to produce this effect. When fish spoils, high levels of histamine are produced as bacteria begin to break down the flesh. This is especially common in fish such as tuna, mackerel, sardines and anchovies, but can occur in other kinds of fish as well. Beware of any fish that smells off, even slightly, and that has a ‘honey-combed’ appearance. Other symptoms include nausea, a tingling sensation around the mouth, sweating, facial flushing, dizziness and headaches. Most symptoms disappear within a few hours, but if the symptoms are severe it would be advisable to seek the attention of your medical doctor or health professional.

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