While industrial farms in the U.S. use antibiotics on healthy farm animals to promote growth and prevent disease, the Danish only use antibiotics when animals are sick, Couric said. They launched what's known as the "Danish Experiment" 12 years ago, after a study revealed a link between animals who take antibiotics to people who develop drug-resistant infections after handling or eating that meat.
"The food consists of wheat, barley and oats, soya, and a mineral mix," Soren Helmer, a Danish pig farmer, said. "No antibiotics here."
Helmer thought switching to antibiotic-free animals would not be as efficient a method of producing pigs. To the contrary, the Danish pork industry has grown by 43 percent since the ban, Couric reported.