You may have heard about the trend of
"oil pulling," which is currently very popular among advocates of
natural medicine, home remedies, and holistic health. Oil pulling is a practice
supposedly originating in India that has taken off in recent years in the U.S.
In short, it involves swishing a tablespoon or two of vegetable oil around in
one's mouth for about fifteen or twenty minutes. Advocates of oil pulling claim
that it provides amazing benefits, from preventing cavities to curing AIDS… But
does it work?
The question doesn't have a straightforward
answer, because it depends on what we mean by "work." One website states, with no scientific evidence
to back the its claims, that oil pulling draws toxins out of the blood stream,
reduces arthritis and inflammation, fights cancer, and boosts the immune
system. The author even claims that it can reduce grey hair. These effects
aren't just unproven; they're completely implausible.
First, there's no rational reason to
believe that oil pulling would draw "toxins" from the bloodstream.
Your mouth doesn't have enough blood vessels to expose all of your blood to the
oil in just fifteen minutes, and, even if t did, it wouldn't remove toxins from
your bloodstream. Fat-soluble toxins are stored in your fat cells, not your
blood, and there's no physical, chemical, or biological action that would cause
toxins to magically jump from your blood and fat, and into a tablespoon of oil
in your mouth.
The other claims are equally outlandish:
there is no mechanism by which vegetable oil mouthwashes could regenerate hair
follicles that have started producing grey hair, shrink tumors, or somehow
reduce inflammation in joints several feet away. Claims like this require some
kind of evidence, or at least a plausible hypothesis, but advocates of oil
pulling don't offer this. There is no evidence that oil pulling works in that capacity.
However, oil pulling does seem to work
fairly well for one thing: improving oral health. At least one study has shown that people who practice oil
pulling for at least 45 days have less gum diseases and plaque than people who
do not. This may be because of actions associated with oil pulling itself, or
it may just be a nice side-benefit of the recommendation to brush and floss
after oil pulling. Doing it at least once daily could lead to better, healthier
checkups at the dentist.
Since it involves safe, edible oils like
coconut and sunflower oil, there aren't any major safety concerns associated
with oil pulling (although the taste could certainly make some people
nauseated). As long as you're comfortable practicing oil pulling, you can feel
free to continue the practice and you might look forward to some benefits for
the health of your teeth. But, if you're expecting it to cure diseases or
purify your blood stream, you'd be better off seeing a doctor than trying to
self-treat using oil pulling.
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