A new generation of supplements have become a billion-dollar business, boasting antioxidants that slow the development of macular degeneration, a leading cause of blindness CTV News in Toronto reports.
These carotenoids, like lutein, zeaxanthin and meso-zeaxanthin, reduce the risk of macular degeneration by up to 25 per cent, studies show.
But researchers at the Waterford Institute of Technology in Ireland found that what’s on the supplement label isn’t always in the package.
“We were amazed with what we saw,” John Nolan, founder and director of the Nutrition Research Centre Ireland (NRCI) and one of the authors of the new report, told CTV News. “Not every product that’s commercially available actually has what it says on the label.”
The lab tested 46 supplements sold in places including Europe, Mexico and the United States.
Sixty-one per cent of the supplements did not have the amount of carotenoids that they claimed to have on the label, according to the report.