
John Geddes reports in this week’s Maclean’s magazine about the poor controls on natural health products, including vitamins, by the Natural Health Products Directorate (NHPD). The NHPD’s regulations come into effect on June 1, and it plans to have the whole industry under regulation by 2010. Look for the 8-digit number after the letters “NPN” on the label. Or don’t. According to Geddes, there isn’t much confidence that can be placed in the Government’s licencing.
He quotes David Bailey, professor of clinical pharmacology at the Universtiy of Western Ontario:
“Once these things are on the market — and this is what really astounds me and most people find hard to believe — you actually have to prove that there’s a problem. The manufacturer doesn’t have to prove that the herbal is safe or that it does anything.”
This, of course, makes it difficult for consumers to distinguish the efficacies of the nearly 40,000 natural products on the market.
For now, traditional claims seem to trump scientific testing for a manufacturer’s ability to get a licence and make unproven assertions, something the pharmaceutical industry would never get away with.
“There’s a huge misperception,” says Bailey, ” that because they come from a natural source they are safer and they are gentler.”
Bailey is known for his discovery that grapefruit juice can interfere dangerously with drugs ranging from blood-pressure medicine to Prozac.
The article is found in the print edition, and doesn’t appear to be online yet.