Fumonisin B(1) (FB(1) ) is a common environmental mycotoxin produced by molds such as Fusarium verticillioides. The toxin poses health risks to domestic animals, including pigs, through FB(1) -contaminanted feed. However, the cytotoxicity of FB(1) to porcine intestines has not been fully analyzed. In the present study, the effects of FB(1) on oxidative stress and nutrient transporter-associated genes of the porcine intestinal IPEC-J2 cells were explored. FB(1) decreased IPEC-J2 proliferation but did not trigger reactive oxygen species (ROS) overproduction. Meanwhile, FB(1) reduced the expressi...