Usually a new medication or a viral infection distorting smell. Sudden taste loss with a stuffy-free nose deserves a COVID test; with facial weakness or slurred speech, call emergency services.
What to do
Common questions
What does it mean if food suddenly tastes different?
A sudden change in how food tastes almost always has a findable cause, and the search starts with what changed recently. The most common culprit is a new or changed medication - MedlinePlus notes taste disturbances are a known effect of many drugs, from antibiotics to blood pressure pills. Right behind that: a viral infection. Colds, sinus infections, and COVID all distort taste, sometimes dramatically, because most of what you call taste is actually smell. Then the mouth itself: gum disease, a dental abscess, or new dental work can change taste. And the quieter causes: pregnancy's first trimester, smoking, reflux, and simply aging - taste buds fade gradually with the years. Two patterns matter more. A sudden total loss of taste and smell together, without a stuffy nose, deserves a COVID test. And taste change arriving with facial weakness, slurred speech, or numbness on one side is a stroke warning - that is a call-emergency-services pattern, not a wait-and-see one. For the everyday version: the taste usually returns when the cold clears or the medication is adjusted - mention it to your prescriber rather than quitting the drug on your own. Pymander is a free AI doctor, 24/7 by text. Tell it what changed recently and it can help you narrow the likely cause.