Many people who pay the huge premium—often more than a hundred percent–for organic foods do so because they’re afraid of pesticides. If that’s their rationale, they misunderstand the nuances of organic agriculture. Although it’s true that synthetic chemical pesticides are generally prohibited, there is a lengthy list of exceptions listed in the Organic Foods Production Act, while most “natural” ones are permitted. However, “organic” pesticides can be toxic. As evolutionary biologist Christie Wilcox explained in a 2012 Scientific American article (“Are lower pesticide residues a good reason to buy organic? Probably not.”): “Organic pesticides pose the same health risks as non-organic ones.”Indeed, plants wage war against herbivores by producing a wide variety of compounds in an evolutionary effort to avoid being eaten. Things that taste bad; things that make them sick, and things that outright kill them. Herbivores have been waging an uneven battle to keep up, becoming tolerant of some and avoiding others.
Another poorly recognized aspect of this issue is that the vast majority of pesticidal substances that we consume are in our diets “naturally” and are present in organic foods as well as non-organic ones. In a classic study, UC Berkeley biochemist Bruce Ames and his colleagues found that “99.99 percent (by weight) of the pesticides in the American diet are chemicals that plants produce to defend themselves.” Moreover, “natural and synthetic chemicals are equally likely to be positive in animal cancer tests.” Thus, consumers who buy organic to avoid pesticide exposure are focusing their attention on just one-hundredth of one percent of the pesticides they consume.
Chocolate is a (weak) aphrodisiac to human women; it's a weak poison to dogs.
Found via Althouse, who was more entranced with the likelyhood of fraud in organic farming:
Few organic consumers are aware that organic agriculture is a “trust-based” or “faith-based” system. With every purchase, they are at risk of the moral hazard that an organic farmer will represent cheaper-to-produce non-organic products as the premium-priced organic product. For the vast majority of products, no tests can distinguish organic from non-organic—for example, whether milk labeled “organic” came from a cow within the organic production system or from a cow across the fence from a conventional dairy farm. The higher the organic premium, the stronger the economic incentive to cheat.As a scientist, I'm interested in the scientific aspect of the colossal fraud, while as a lawyer, she's more interested in the legal issues.