Non-nutritive sweeteners illustration (IMAGE) Experimental Biology Caption Non-nutritive sweeteners (NNS) consumed in the diet enter the liver from the blood circulation. Researchers found that in liver cells, the detoxifying transporter P-glycoprotein (PGP) exports NNS preferentially to several known substrate compounds. In a physiological context, this could leave other PGP substrates such as certain medications trapped in cells, potentially leading to liver toxicity. Credit Laura Danner, Medical College of Wisconsin. Created with BioRender.com Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.