Posted 08 January 2009 - 08:52 PM
{quote:title=People_Eater wrote:}{quote}
> ...what's wrong with organic foods? I'd rather not have pesticides, artificial preservatives, hormones and other toxins in my food. And my organically home-grown veggies are far superior in flavor and texture to those that the supermarket sells.
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I won't dispute that homegrown produce beats store-bought for flavor, texture, color, and joy of eating, largely because of unfortunate realites in mechanized harvest and long distance shipping. I love gardening, local foods, and appreciate that what I and my neighbors grow is not the product of exploitative labor practices.
But don't think for a moment that your organic garden is protecting you from the naturally-occuring phytotoxins, mycotoxins, bacteria, phytochemicals, soil and mineral residue, and the decay and spoilage byproducts resulting from increased insect feeding and pathogen attack on untreated produce. And those toxins and natural chemicals are FAR more hazardous than pesticide and preservative residue (in the U.S. and likely most other countries). Take a course in food toxicology: learn about aflatoxin and tetrodotoxin and selenium and staphylococcus aureus and lipid A, not to mention botulism, and discover that the human ED-50 for raw cabbage is a mere 500g because of toxins that the cabbage itself makes. These are normal environmental and integral components of any agriculture. I am a pathologist; this is my expertise. Take a moment and realize that "organic farming" permits the use of manure teas, compost teas, and other brews that are TOTALLY uncharacterized, untested, and often unsafe, and can be applied as late as hours before harvest, and think about salmonella, listeria, noroviruses and giardia, lead, mercury, and chromium. You literally don't know what they've put in your "organic" food that the grocery store sells at a premium. Such "organic" food is not one bit more nutritious than the standard product, and is potentially far more hazardous to your health.
But there is great profit motive in creating a niche market and putting a "brand" on commodity produce, and unfortunately this encourages the misguided, the misinformed, and the miscreant alike toward shrill fear-mongering. Simply put, "organic food" is a scientific and consumer fraud that most of my colleagues are too timid and polite to proclaim.
It is true that our species followed organic food practices for millennia--despite these risks. But we live longer now, and in numbers far surpassing what Earth could otherwise sustain, in part owing to improved nutrition, reduced foodborne illness, and a more reliable food supply. Evolution has given us the ability to survive fairly well DESPITE all these toxins and hazards. And I heartily encourage you to continue cultivating your garden and enjoying its bounty.
(Thank you to the editors for allowing me to digress so long.)