A recent JAMA study found that 20.7% of Ayurvedic products purchased via the Internet contain detectable lead, mercury, or arsenic.

A study1 published in the August 27th issue of the Journal of the American Medical Association (JAMA) found that one-fifth of both US-manufactured and Indian-manufactured Ayurvedic medicines purchased via the Internet contain detectable lead, mercury, or arsenic. Of Ayurvedic products made in the United States, 21% contained lead, 3% contained mercury, and 3% contained arsenic. Among the Indian-made, 17% contained lead, 7% had mercury and none contained arsenic. For the study, researchers used five Internet search engines to identify 25 websites offering traditional Ayurvedic herbs, formulas, or ingredients frequently used in Ayurveda. From 673 identified products, 230 Ayurvedic medicines were randomly selected for purchase in August-October 2005. Metal concentrations were measured using x-ray fluorescence spectroscopy. Read the full abstract/purchase the study >>


References:

1. Lead, Mercury, and Arsenic in US- and Indian-Manufactured Ayurvedic Medicines Sold via the Internet
Robert B. Saper, MD, MPH; Russell S. Phillips, MD; Anusha Sehgal, MD(Ayurveda); Nadia Khouri, MPH; Roger B. Davis, ScD; Janet Paquin, PhD; Venkatesh Thuppil, PhD; Stefanos N. Kales, MD, MPH
JAMA. 2008;300(8):915-923.