Herbal supplements concern

Doctors are calling for tighter regulation of herbal supplements following two recent cases of severe liver toxicity in Australian men.

In one case, a previously healthy 26yearold WA man required a liver transplant after taking dietary supplements containing green tea extract and Garcinia cambogia for one week.

In the second case, a healthy 57yearold Victorian man developed acute hepatitis after taking a cold and flu remedy containing valerian for three days.

According to the 26yearold's doctors at Geraldton Hospital, figures from the US show that herbal and dietary supplements are the second most