Also known as: Ageusia
Loss of taste is a reduced or absent ability to detect sweet, salty, sour, bitter, or umami flavours. It often accompanies loss of smell.
True taste loss (ageusia) is less common than perceived flavour loss, which is usually caused by impaired smell. The tongue detects only five basic tastes — the rich complexity of flavour comes from olfactory input.
COVID-19 highlighted the distinction between smell and taste loss. While most COVID-related flavour loss is actually anosmia, the virus can also directly affect taste receptors on the tongue.
Medications are an underrecognized cause, with over 200 drugs potentially altering taste, including antibiotics, blood pressure medications, and chemotherapy agents.
There are several possible reasons you may be experiencing Loss of Taste. Here are the most common ones.
Respiratory viruses including COVID-19 can damage taste receptors and olfactory neurons, affecting flavour perception.
ACE inhibitors, antibiotics (metronidazole), lithium, and chemotherapy drugs commonly alter taste.
Zinc is essential for taste bud function. Deficiency causes reduced taste acuity.
Taste bud numbers decrease with age, typically after 60, reducing taste sensitivity.
These approaches may help manage loss of taste at home. Always consult a healthcare provider if symptoms persist or worsen.
If deficient, zinc supplements can restore taste function within weeks.
Clean tongue and teeth to maximize taste bud exposure to food.
Use herbs, spices, and varied textures to enhance eating experience while taste recovers.
Clinical taste testing, zinc level blood test, medication review, and referral to ENT if persistent.
See a doctor if taste loss persists beyond 2 weeks, occurs without obvious cause, or is accompanied by other neurological symptoms.
Steps you can take to reduce the likelihood of experiencing loss of taste.
Maintain adequate zinc intake
Practice good oral hygiene
Discuss taste side effects with doctor when starting new medications
Most recover within 2-4 weeks. Prolonged loss beyond 3 months occurs in a small percentage of cases.
Yes. Over 200 medications can alter taste. Common culprits include ACE inhibitors, antibiotics, and chemotherapy.
Not directly, but it affects nutrition and enjoyment of food. It can also indicate underlying conditions worth investigating.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.