The antioxidant N-acetyl cysteine (NAC) cut hospital stays and helped children survive after a liver transplant, according to a new study. Researchers from King’s College Hospital in London, England, reviewed the medical records of 170 children who had acute liver failure from causes other than overdosing on acetaminophen. Those who received NAC were able to leave the hospital an average of six days sooner than those who did not receive NAC, 19 days versus 25 days. After receiving the transplant, 16% of the children receiving NAC died, compared to 39% of those who did not receive NAC. Doctors believe that NAC helps promote healthy liver tissue and reduces liver inflammation.