A compound that naturally occurs in grapefruit and certain other citrus fruits may be capable of fighting chronic hepatitis C infection by blocking an important pathway in the virus' life cycle. New studies conducted in human liver cells show that the common flavonoid naringenin inhibits the secretion of hepatitis C virus from infected cells, a process required to maintain chronic infection (Nahmias Y et al. Hepatology.doi:10.1002/hep.22197 [published online ahead of print January 7, 2008]).
Hampton T. Grapefruit Compound Battles Hepatitis C. JAMA. 2008;299(13):1532. doi:10.1001/jama.299.13.1532