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Pesticides stop production of polyphenolic
compounds
The organic foods report (prepared by the Soil Association - the
UK's counterpart to the USDA) addressed eight key topics of food
cultivation, processing and nutritional content, starting with pesticides.
This is probably the main element that most people
associate with organic foods: that they're pesticide-free. What's
not so well known is the connection between pesticide use and the
antioxidant content of food.
Crops that are stressed by insects produce polyphenolic
compounds, which are naturally potent antioxidants. But crops that
are treated with pesticides don't need the natural protection of
polyphenolics, and produce less of the compounds. So when crops
are denied pesticides, consumers get a double benefit: better nutrition
without the residue of chemical pesticides in the food, and a higher
antioxidant content.
The UK report noted that pesticide use has been
associated with a variety of health risks, including cancer, fetal
abnormalities, chronic fatigue, and Parkinson's disease. One study
revealed that women with breast cancer are five to nine times more
likely to have traces of pesticides in their blood than women who
don't have the cancer.
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Additives out
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Organic foods are free of food additives such as
MSG, hydrogenated fats, and artificial sweeteners and coloring,
which have been associated with a risk of asthma, headaches, growth
retardation, and hyperactivity in children. These additives have
also been linked to the development of allergies - another of the
key elements of the UK report.
Genetically modified (GM) organisms are also not
allowed in the production of organic food. The report notes that
only ten studies of GM foods have been conducted. Among those, the
ones that were completely independent of funding or input from companies
with GM affiliations found evidence of harmful effects in the gut
lining of humans.
The report cautions that until GM crops and food
products are properly tested, "people are, in our opinion,
wise to avoid eating GM food."
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High C
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Besides the obvious benefits of not ingesting pesticides,
additives, and GM organisms, organic foods have been found to be
more nutritious than conventionally grown foods. The Soil Association
conducted a study to compare the vitamin and mineral content of
organic foods vs. non-organic foods. The organics won out with higher
levels in all 21 of the examined nutrients.
The vitamin C and magnesium levels in the organic
foods were 27 percent and 29 percent higher, respectively, compared
to the non- organic samples. And minerals were found to be significantly
higher in organic spinach, potatoes, cabbage, and lettuce.
Similar results were reported in tests of organic
livestock animals that foraged for fresh food compared to livestock
that was given processed feed.
The organic livestock had higher concentrations of
omega-3 fatty acids and conjugated linoleic acid (CLA) - two key
nutrients whose value is well known to HSI members.
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Coming around
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For several years, the UK's Food Standards Agency
(FSA) didn't officially recognize any difference between organic
foods and conventionally grown foods. But the UK organic food report
indicates that the official view may be changing. At a public meeting
last year, Sir John Krebs, the Chair of the FSA, admitted that organic
food contains fewer residues of pesticides than foods grown by conventional
means.
So if you're fortunate enough to have access to
fresh, organically grown produce, the next time you're given the
choice between lower priced conventionally grown food or higher
priced organic, just ask yourself: Which would Sir John buy?
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