In September of 2007, Caruso and colleagues published a structured review of the effects
of zinc lozenges, nasal sprays, and nasal gels on the common cold [66].
Not exact matches
We swear by
zinc lozenges when we feel that first sign
of being sick.
The bad news is that I'm coughing regularly and probably starting the chest cold that has had my wife in bed all weekend (and, no, in her current condition she is NOT hot...) Airborne
zinc lozenges, and vitamin C are already on board and will alternate with the brewskis for at least the next several couple
of days (then back to work on Wednesday, I hope...) My favorite line from Animal House is definitely in order...
Meanwhile,
zinc — found in chocolate, pumpkin seeds, and tahini — has been proven to boost the immune system, while
zinc lozenges (like Zicam and Cold - EEZE) may help prevent the spread
of respiratory viruses.
Although Skaar's findings must be replicated in humans, his research does call into question the use
of dietary supplements (like multivitamins) and cold remedies (like nasal sprays and
lozenges) containing
zinc.
As for
zinc, you might do better to opt for
lozenges instead
of up - the - nose remedies.
(The high -
zinc diet was designed to mimic levels humans might experience if they got plenty
of zinc from food but also took a supplement for many weeks, for example, or if they took a
zinc lozenge and a multivitamin every day.)
Another randomized, double - blind placebo study found that those who took
zinc acetate
lozenges had a significantly shorter duration
of a cold compared to those who took a placebo.
Kids who had taken
lozenges or
zinc syrup for 5 months or more caught a lesser number
of colds and took fewer days off school.
The theory that
zinc could be effective for the common cold originated from research performed in 1984, which revealed that
zinc lozenges can reduce the length
of time symptoms lasted.
For the common cold, doses range from 4.5 - 24 milligrams
of zinc (gluconate or acetate) in the form
of lozenges.
In a randomized, double - blind, placebo - controlled clinical trial, 50 subjects (within 24 hours
of developing the common cold) took a
zinc acetate
lozenge (13.3 mg
zinc) or placebo every 2 — 3 wakeful hours.
Neither
zinc gluconate nor
zinc acetate
lozenges affected the duration or severity
of cold symptoms in 281 subjects with natural (not experimentally induced) colds in another trial [68].
In another clinical trial involving 273 participants with experimentally induced colds,
zinc gluconate
lozenges (providing 13.3 mg
zinc) significantly reduced the duration
of illness compared with placebo but had no effect on symptom severity [68].
More recently, a Cochrane review concluded that «
zinc (
lozenges or syrup) is beneficial in reducing the duration and severity
of the common cold in healthy people, when taken within 24 hours
of onset
of symptoms» [70].
When browsing the Immunity Section at most vitamin and supplement stores, the shelves are usually lined with products like echinacea,
zinc lozenges, and an assortment
of other herbs and vitamins that are thought to boost the immune system.
The final thing that we found was that in the chemical formulation, a lot
of lozenges on the market have citric acid and many other binders; all these binders prevent
zinc from ionization and therefore render it unavailable for action.
Two randomized controlled trials
of zinc gluconate
lozenge therapy
of experimentally induced rhinovirus colds
Failure
of effervescent
zinc acetate
lozenges to alter the course
of upper respiratory tract infection in Australian adults
Some studies suggest that
zinc lozenges or syrup (but not
zinc dietary supplements in pill form) help speed recovery from the common cold and reduce its symptoms if taken within 24 hours
of coming down with a cold.