system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it considered bad to treat animals intended for consumption with antibiotics? Can it cause health problems in humans or is it mainly a sustainability issue?
gpt
They aren't fed antibiotics to cure diseases they have. They are fed low doses of antibiotics throughout their lives which accelerates their weight gain. The antibiotics end up in their waste and in the environment, and any bacteria in or on them may develop resistance to the antibiotics.