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The routine, growth-promoting or prophylactic use of antibiotics is prohibited in organic standards for animal husbandry [25]. There is growing concern over the risk to human health and concerns that microorganisms may develop antibiotic resistance because of the misuse and overuse of antibiotics in livestock rearing [10]. A recent report suggested that bacterial isolates from foods produced from organically raised animals are less resistant to antimicrobial treatment when compared to conventionally raised animal foods [14]. Concerns of microbial pathogenesis have not been fully addressed by the USDA, although these issues are an additional source of consumers’ growing interest in organically produced foods.

Food Additives

More than 500 additives are permitted for use in non-organically processed foods, compared with about 30 permitted in organic food processing (Table 27.1). Even though organic standards limit the use of additives linked to allergic reactions, headaches, asthma, growth retardation, hyperactivity in children, heart disease, and osteoporosis [18], some of them could trigger allergic reactions in consumers who are already predisposed to these or similar conditions.

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