From MEpedia, a crowd-sourced encyclopedia of ME and CFS science and history

Dysgeusia or parageusia is an altered sense of taste, which may involve a persistent unpleasant taste, ageusia is a total loss of sense of taste, and hypogeusia is a reduced ability to taste sweet, sour, bitter, salty or umami (delicious/savoury) tastes.[1][2]

A change in sense of smell may occur alongside a change in sense of taste.[1][3]

Prevalence in ME/CFS[edit | edit source]

Symptom recognition[edit | edit source]

An altered sense of taste is a potential symptom of Long COVID in the World Health Organization's definition.[5]

Notable studies[edit | edit source]

Possible causes[edit | edit source]

Common causes of altered sense of taste and/or smell include:

Learn more[edit | edit source]

See also[edit | edit source]

References[edit | edit source]

  1. 1.0 1.1 1.2 "Smell and Taste Disorders". Johns Hopkins Medicine. Retrieved December 14, 2021.
  2. Doty, R.L. (January 1, 2014). Aminoff, Michael J.; Daroff, Robert B. (eds.). Ageusia. Oxford: Academic Press. pp. 69–71. ISBN 978-0-12-385158-1.
  3. 3.0 3.1 Hellier, Jennifer L. (November 7, 2016). The Five Senses and Beyond: The Encyclopedia of Perception: The Encyclopedia of Perception. ABC-CLIO. ISBN 978-1-4408-3417-2.
  4. De Becker, Pascale; McGregor, Neil; De Meirleir, Kenny (December 2001). "A definition‐based analysis of symptoms in a large cohort of patients with chronic fatigue syndrome". Journal of Internal Medicine. 250 (3): 234–240. doi:10.1046/j.1365-2796.2001.00890.x.
  5. Soriano, Joan B.; Allan, Maya; Alsokhn, Carine; Alwan, Nisreen A.; Askie, Lisa; Davis, Hannah E.; Diaz, Janet V.; Dua, Tarun; de Groote, Wouter; Jakob, Robert; Lado, Marta; Marshall, John; Murthy, Srin; Preller, Jacobus; Relan, Pryanka; Schiess, Nicoline; Seahwag, Archana (October 6, 2021), A clinical case definition of post COVID-19 condition by a Delphi consensus, World Health Organization (WHO) clinical case definition working group on post COVID-19 condition, World Health Organization
  6. Mehraeen, Esmaeil; Behnezhad, Farzane; Salehi, Mohammad Amin; Noori, Tayebeh; Harandi, Hamid; SeyedAlinaghi, SeyedAhmad (June 17, 2020). "Olfactory and gustatory dysfunctions due to the coronavirus disease (COVID-19): a review of current evidence". European Archives of Oto-Rhino-Laryngology: 1–6. doi:10.1007/s00405-020-06120-6. ISSN 0937-4477. PMC 7297932. PMID 32556781.