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Ageusia Definition

Ageusia is a medical state in which the tongue loses its ability to taste. In this condition the tongue can no longer differentiate sweetness from salt, sour, bitter and umami flavors. The taste buds may not appear to be swollen but the nerves of the tongue are no longer responsive to the stimuli. Ageusia is caused by neurological problems in the brain, lack of vitamin B3 in the endocrine system and side effects brought about by anti-rheumatic drugs.

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