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When
Food Doesn't Taste As Good As It Used To
Most
of us have heard an older relative or friend talk about "how
things used to be." In the case of food, the comment
is frequently that food doesn't taste the same. For some people,
the reason that food doesn't taste as good as it used to is due
to losses in the ability to taste and smell. These losses, called
chemosensory losses, affect approximately 2 million adults, according
to some estimates. Taste and smell losses are generally first
noticed around age 60, although they can occur earlier, and are
more severe in people over 70 years of age. If you're "of
a certain age" or caring for someone who is, there are reasons
why food doesn't taste as good as it used to. More importantly,
there are solutions.
Taste
Losses
Taste losses are considered rare, and when they do occur it's
usually the result of normal aging, although the exact mechanisms
involved are not completely understood. It is known that some
taste loss is associated with the normal elevation of taste "thresholds"
in older people. Higher taste thresholds indicate an individual
requires a higher concentration of taste in order to detect and
recognize its presence. In other words, foods need more flavor
in order to make an impact!
Smell
Losses
Smell losses are more common in older people. In fact, studies
indicate that half of those aged 80 and older have lost most of
their sense of smell, and one-quarter of those between 65 and
79 experience smell losses. We've all experienced what a loss
of smell can do to our ability to taste food when we've had a
cold. To mimic this effect, you can try this simple experiment,
the Jelly Bean Challenge.
Illnesses
Can Affect Taste and Smell
Medical conditions can be a major contributing factor to taste
and smell losses and distortions in people of all ages. Yet, we
all know that as we age, we become more vulnerable to certain
illnesses, which in turn makes us more vulnerable to taste and
smell problems.
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Some
Illnesses That Affect Taste and Smell
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Allergic
rhinitis
Alzheimer's disease
Bronchial asthma
Cancer
Chronic renal failure
Cushing syndrome
Diabetes mellitus
Epilepsy
Head trauma
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Hypothyroidism
Liver disease and cirrhosis
Multiple sclerosis
Niacin (B-3) deficiency
Parkinson's disease
Sinusitis
Tumors
Viral hepatitis
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| Source:
Schiffman, SS. Taste and smell losses in normal aging
and disease. J Am Med Assoc., 1997; 278(16):1357-1362. |
Medications
Can Impact Your Ability to Taste and Smell
Can't
smell or taste your food? Medical treatments, such as chemotherapy
and radiation to the head are known to cause alterations in taste
and smell. But even commonly prescribed medications could be the
culprit.
Clinical
studies have implicated over 250 drugs in altered taste sensations.
And, while it's not known exactly how these medications induce
taste losses, it has been established that medications can exert
adverse effects on taste through secretion into saliva, through
the blood and perhaps even by hindering the turnover of taste
cells.
Another
problem associated with many medications is decreased salivary
flow. This side effect can lead to mouth discomfort and problems
in chewing and swallowing food. This, in turn, can lead to a decreased
food intake, which can be dangerous for many older peopleespecially
those who already have health problems.
All
of these problems are compounded by the practice of taking more
than one medication, also called polypharmacy. Polypharmacy is
actually very common among older peopleand many young people,
too! Yet, studies have found that, for older people, taking more
than one prescription drug at a time is a frequent risk factor
for nutrition-related problems. It may also play a role in chemosensory
disorders by increasing the likelihood of taste alterations. Consulting
a pharmacist about the possibility of taste or smell side effects
(and other side effects) is always a good idea.
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Some
Medications That Affect Taste & Smell*
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Lipid-lowering
drugs
Antihistamines
Antimicrobials
Anti-inflammatories
Bronchodilators and other asthma medications
Antihypertensives and cardiac medications
Muscle relaxants
Antidepressants
Anticonvulsants
Vasodilators |
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*Within
each type, not necessarily all drugs will affect
taste and smell.
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| Source:
Schiffman, SS. Taste and smell losses in normal aging
and disease. J Am Med Assoc., 1997; 278(16):1357-1362. |
There
are ways to compensate for taste and smell alterations caused
by medications or medical treatments. Using some of these techniques
may make eating enjoyable again!
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