The carotenoid, lutein, has been found to protect rats from liver damage induced by either paracetamol (found in Panadol and many other painkillers), dry-cleaning fluid and alcohol.

The liver-protective action may be due to lutein's antioxidant effects.

Carotenoids are a class of natural fat-soluble pigments that are found in many fruits and vegetables. Consumption of a diet rich in carotenoids has been epidemiologically correlated with a lower risk for several diseases.

Yet another study finding that a healthy diet needs to be high in fruits and vegetables. Lutein is also available as a supplement.

Sindhu ER1, Firdous AP, Preethi KC, Kuttan R. J Pharm Pharmacol. 2010 Aug;62(8):1054-60. doi: 10.1111/j.2042-7158.2010.01123.x.