A DNA test of herbal products has found that most of them contained cheaper fillers and plant ingredients not listed on the label, some of which pose "serious health risks."
Researchers at the University of Guelph used DNA barcode testing to test 44 herbal products from 12 companies. DNA barcoding uses a short sequence of DNA from a standard segment in plants to identify the species rapidly and accurately.
"Product substitution occurred in 20/44 of the products tested and only 2/12 companies had products without any substitution, contamination or fillers," Steven Newmaster, an integrative biology professor at the University of Guelph and his co-authors concluded in Friday's issue of the journal BMC Medicine.
"Some of the contaminants we found pose serious health risks to consumers."
Written By: CBC News
continue to source article at cbc.ca