Change in taste

A change in taste means that food or drink does not taste the same as before — flavors may seem weaker, unusual, or completely gone. The sense of taste consists of five basic tastes: sweet, salty, sour, bitter, and umami (savory/meaty taste). Often, a change in taste is caused by a disturbance in the sense of smell, because much of what we perceive as taste depends on how we detect food aromas through the nose. The most common causes in Finland are upper respiratory tract infections (e.g. a cold, sinusitis), aging, certain medications, and sometimes changes caused by diseases of the mouth or tongue. Dysfunction of the facial nerve, such as facial paralysis, can also affect taste. A change in taste is usually harmless and temporary, but if it lasts for several weeks, is associated with other symptoms (such as difficulty swallowing, facial numbness, sores on the tongue), or appears suddenly without a clear cause, it is advisable to seek assessment from a healthcare professional. A professional will help determine the possible cause and direct you to any necessary further tests.