Complementary Medicine And Heavy Metal Toxicity In Australia

In recent years, heavy metal toxicity related to the use of traditional Chinese and Indian herbal medications has been reported in a number of countries, including Australia. Heavy metals such as lead or mercury may be introduced into herbal medications through contaminated soil or production techniques, or may be deliberately included as a therapeutic ingredient. Particularly when consumed over prolonged periods, heavy metals have been detected in some products at levels sufficient to cause significant toxicity. Currently, these medications may be imported for personal use without licence or testing, and there is continued risk that Australians may develop heavy metal toxicity through their use. This article will review heavy metal toxicity related to herbal preparations, and argue that the current regulatory framework could be strengthened through the use of targeted public educational campaigns and the provision of free heavy metal testing for imported medications.