|
back
to nutrition home
The truth about Organic Agriculture
Certified organic agriculture has been through
a lot of media scrutiny in the past year. Many shoppers arent
sure what to think. Last fall the Consumers Union conducted
research that showed that many conventionally grown vegetables and
fruits contained pesticide levels dangerous to young children; and
they recommended buying organically gown foods. In the winter of
00 the TV program 20/20 televised a news story that implied
organically grown food may not be safe to eat. These two opposite
opinions presented by the popular media make it difficult to decide
whether or not to buy organic. In this article we will demystify
organic agriculture, and make it easier to decide whether buying
organic is right for you.
The official definition of organic is as follows,
"Organic agriculture is an ecological production management
system that promotes and enhances biodiversity, biological cycles
and soil biological activity. It is based on minimal use of off-farm
inputs and on management practices that restore, maintain and enhance
ecological harmony."
What does this mean? It means that when you
see a product labeled as "certified organic", it has been
grown using specific farming practices that minimize pollution to
the air, soil and water. It is sustainable, and does not harm the
environment in the process. The primary goal of these farming practices
is to optimize the health and productivity of interdependent communities
of soil life, plants, animals and people. In other words, the practice
of organic farming does not result in the killing of birds, fish,
beneficial insects, beneficial microorganisms, reptiles, and other
wildlife. It does not present a hazard to farmers or consumers.
On the other hand, pesticide use in conventional farming killed---wildlife
last year. The Monsanto company, which manufactures pesticides,
admits ----people were killed by pesticide exposure last year.
You may notice that the definition refers to
"off-farm inputs". These are certain pesticides which
may be used and are not harmful to the ecosystem. They are strictly
regulated. This is a way of referring to pesticide management practices
that do not use persistent, toxic chemicals that stay in the environment
and move through the food chain. Approved pesticides, are nontoxic,
like----.
When a farmer is "certified" every
aspect of their farming practices is scrutinized in great detail.
They are visited by an independent inspector who not only inspects
the farm, but requires detailed logs of farming practices, documents,
and invoices that prove the claimed organic practices. It is a very
thorough and reliable process.
So what about the safety of organic foods? Specifically
the claim made on 20/20 that it is contaminated with the bacteria
E.coli (Escherichia coli) as a result of manure use? To understand
the claim, you need to know a little about E. coli. First, E.coli
are bacteria that normally live in the intestines of animals, including
humans, and is present in the ecosystem. There are approximately
100 strains of E.coli, most of which are beneficial. In fact, the
presence of E.coli and other kinds of bacteria within our intestines
is necessary for the human body to remain healthy. However, not
all E.coli are beneficial, there also are strains of E. coli that
are known to produce toxins, particularly the rare strain E.coli
O157:H7, a pathogenic strain isolated from manure from cattle, sheep,
pigs, deer and poultry. This strain can cause severe illness or
death. However, Dr. Michael Doyle of the University of Georgia,
the researcher who conducted the tests cited by 20/20, has said
the produce was tested for a "generic" E.coli screen,
and as such, "does not differentiate between pathogenic and
non-pathogenic E.coli." Therefore, the tests cited by 20/20
reveal no scientific evidence about danger in regards to organic
foods.
The show erroneously implied that only organic
agriculture uses manure. In fact, conventional and organic agriculture
both use manure as a part of regular farm soil fertilization programs.
Certified organic farmers must maintain a strict farm plan detailing
the methods used to build soil fertility, conventional farmers do
not. Certifiers and scientists recommend the use of well-composted
manure, which reduces the presence of E coli. The process of certification
imposes strict control on the use of manure on farm fields.
However, wash all fresh fruit and vegetables
thoroughly before eating, even if organically grown. Your produce
could have ridden in an open truck traveling dusty country roads
or handled by a worker who didnt wash his or her hands properly.
Any contaminated water source or contaminated person can contaminate
vegetables and fruits no matter how they are grown.
|