K-State Research Suggests Probiotics May Pose Risks to Animal, Human Health

“Although probiotics are beneficial bacteria, some bacterial species can have unintended negative consequences,” Amachawadi said. “Our research has shown that Enterococcus faecium carries genes that confer resistance to antibiotics widely used in human medicine. Feeding such products to animals raises the possibility that the genes can be transferred to pathogenic bacteria and make them resistant to antibiotics, which can be passed on to humans.”