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Quality is another part of the discussion of the effect of animal products on humans and the planet.
Routinely mixing antibiotics into feedlot chicken and beef diets has produced antibiotic-resistant strains of bacteria that can (and do) make people sick, but for which there is no effective antibiotic treatments.
Also, poultry processing includes high levels of fecal contamination, which can stay in the meat, and are then consumed by people.
The quality of our diets affects our health, and with the cost of health care in this country rising along with increases in chronic illnesses,diabetes and obesity, greenhouse gas emissions aren't the only negative consequences of consuming a diet high in commercially produced meat.