Q:
I’ve just had a baby and want to make sure she has the healthiest
possible start in life. With all the viruses and bacteria around us,
I am trying to keep our home as clean as possible. But during a
recent visit, my mother-in-law said I shouldn’t be using
antibacterial soap. I figure that using it is one of the no-brainer
things we can do. So who is right?
A:
There is a great deal of evidence that the use of antibacterial soap
in the normal household is unnecessary and causes far more harm than
good, both to human health and the environment.
Since 2000, the American Medical Association (AMA)
has been advising the U.S. Food and Drug Administration (FDA) to
closely monitor and possibly regulate the home use of
antimicrobials. At the AMA annual meeting in 2000, Myron Genel,
chair of the AMA Council on Scientific Affairs and a Yale University
pediatrician, said, “There’s no evidence that they do any good and
there’s reason to suspect that they could contribute to a problem”
by helping to create antibiotic-resistant bacteria.
And just this past fall, the FDA finally announced that it is
considering restricting antibacterial soaps, which its panel of health experts
overwhelmingly said have not been proven any more effective than regular soap in
preventing infections among average consumers. Actions the FDA could take
include changing product labels, restricting marketing claims or pulling the
products off the market altogether. The advisory panel told the FDA that
consumer products that include bacteria-fighting ingredients should be required
to have scientific data proving they prevent infections.
At issue are antibacterial products that include chemicals such
as triclosan, which is known for its bacteria-fighting properties. However,
antibiotics kill more than the disease-causing bacteria to which they are
directed. They kill any other susceptible bacteria. Once the ecosystem is
cleared of susceptible bacteria, resistant bacteria can multiply and dominate
the environment due to lack of competition, resulting in drug-resistant
“superbugs”. The phenomenon can be likened to weeds that have overgrown a lawn
where the grass has been completely destroyed by an overdose of herbicides.
The ubiquity of the antibacterials in soaps “is a worrying
thing,” lead researcher Dr. Eli N. Perencevich of Beth Israel Deaconess Medical
Center in Boston, Massachusetts, told the media at a meeting of the Infectious
Diseases Society of America in New Orleans in 2000. He said at the level of
usage of antibacterial soap in the typical home, bacteria could easily develop
that would be resistant to both antibiotics and the antibacterial soaps
themselves.
Microbiologist Dr. Stuart Levy of Tufts University told an
International Conference on Emerging Infectious Diseases in Atlanta, Georgia in
2000 that strong antibacterial cleaners are needed only when someone in a
household is seriously ill or has low immunity. He said that older cleansers
such as soap and hot water, alcohol, chlorine bleach and hydrogen peroxide are
sufficient for most purposes.
In fact, your use of antibacterial cleaners may be hurting your
baby’s immune system rather than keeping her healthy. Dr. Levy, who has long
been active with the Alliance for the Prudent Use of Antibiotic (APUA), spoke of
an Italian study that found that exposure to bacteria is essential for
development of an infant’s immune system. A baby, he said, must be exposed to
germs during its first year in order to develop the antibodies needed to fight
infection later in life.
There are also environmental problems with the over-use of antibacterial agents,
which may, in turn, lead to health problems. According to Peter Vikesland of the
Virginia Polytechnic Institute and State University, in research published on
Environmental Science & Technology’s Research ASAP website, he and his
colleagues found that the triclosan antimicrobial agent used in household
dishwashing soaps reacts with chlorinated water to produce unacceptably high
levels of chloroform, which is known to be a probable human carcinogen.
The research also suggests that the reaction of triclosan with
chlorine could be producing highly chlorinated dioxins in the presence of
sunlight.
Triclosan is also found in toothpastes, acne creams, deodorants, lotions and 75
percent of liquid soaps and nearly 30 percent of bar soaps. It is also
incorporated into a wide range of consumer products like toys, cutting boards,
toothbrush handles, hot tubs and athletic clothing.
Like Levy, other researchers suggest restricting the use of
antibacterial cleaning products to health care settings like hospitals or
nursing homes with very sick residents. However, industry representatives
contend that their products are safe and that people should be able to clean
themselves and their homes as effectively as hospitals. Unfortunately, triclosan
and other antibacterial chemicals take time to work, needing to be left on a
surface for up to two minutes. Since most people are not that patient or
conscientious, they end up rinsing off the antibacterial cleansing agent before
it has time to work. On the other hand, regular soap gets rid of bacteria too,
by adhering it to the soap’s fatty acids, which become encapsulated in droplets
of water and washed away.
Another piece of the puzzle not mentioned by the soap industry
in its marketing of expensive antibacterial agents to consumers is that many of
the most common diseases are viral in nature and therefore not prevented by
antibacterial products!
So take the advice of some of the world’s best microbiologists
and medical doctors, including the Centers for Disease Control and Prevention,
and wash your hands, your baby and your home thoroughly with ordinary soap and
warm water or traditional cleaning agents. And you will be effectively, safely
and inexpensively warding off infection while not destroying your family’s
natural immunity.
Learn More
The Antibiotic Paradox: How the Misuse of Antibiotics Destroys Their Curative
Powers by Stuart B Levy (Perseus Publishing, 2002)
The Natural Soap Book : Making Herbal and Vegetable-Based Soaps by Susan
Miller Cavitch (Storey Publishing, 1995)
Alliance for the Prudent Use of Antibiotics
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Author Wendy Priesnitz is Natural Life's editor, a respected journalist,
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