http://www.gaiaresearch.co.za/organics.html Excerpts follow:
Organically grown plants may each produce a minimum of 50 such natural pesticides. Prof Bruce Ames is quoted as saying that the average person consumes 1500mg of pesticides a day, of which 1499.91mg are endogenous toxins, the remaining 0.09mg being synthetic pesticides applied to the produce by the farmer.
“Anticarcinogenic phytochemicals in the diet protect humans equally well against synthetic and natural carcinogens. Multiple hazard chemical synergisms occur from both natural and synthetic sources. These anticarcinogens do not distinguish whether carcinogens are synthetic or natural in origin.”
Crop protection chemicals reduce plant stress, yet there is no pesticide risk management program that evaluates the risk versus benefit equation to balance the risk from crop protection chemicals (which are extensively tested and heavily regulated) against the benefit of decreased risk from natural plant and fungal toxicants (which are only sporadically tested and regulated).
“The human diet has changed drastically in the last few thousand years, and most humans are eating many recently introduced plants that their ancestors did not. Natural selection works far too slowly for humans to have evolved specific resistance to the food toxins in these newly introduced plants.”
“It is possible that every plant in the supermarket contains natural carcinogens (legumes, cereals, fungi, herbs, spices and beverages included with the fruits and vegetables) at levels commonly measured in the (highest) parts per thousand ranges, ie. thousands of times higher than from man-made pesticides.