Taste changes may include the complete loss of taste
(ageusia), partial loss of taste (hypogeusia), a distorted sense of taste
(dysgeusia), such as a
metallic taste, or an unpleasant or revolting taste
A decrease in or loss of taste is common in older
adults. It is part of the normal aging process and may be caused by:
A decrease in the number of taste
Changes in the way the nervous system processes the sensation
of taste. This may cause a decline in the awareness of taste.
decreased amount of saliva or an increased stickiness of
Changes in the tongue, making it harder for flavors to
reach the taste buds.
Other factors that may cause taste change include:
A dry mouth.
Loss of smell. Much of
what is thought of as taste is actually smell.
such as a cold or flu.
Cigarette smoking or the use of smokeless
Medicine or surgery. Medicines that commonly
distort taste include thyroid medicines, captopril, griseofulvin, lithium,
penicillamine, procarbazine, rifampin, vinblastine, and vincristine.
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