Over half of major drug recalls in the United States over the past decade involved dietary supplements that contained unapproved ingredients, a new study published in the online edition of JAMA Internal Medicine revealed.
According to researchers at St. Michael's Hospital in Toronto, around 51 percent of Class I recalls over the last nine years adulterated dietary supplements instead of a pharmaceutical product. Majority of those dietary supplements were either body building supplements, sexual enhancers or weight loss aids.
The US Food and Drug Administration also warned that dietary supplements which contained a stimulant called dimethylamylamine (DMAA) posed a serious health risk to its consumers and added that such products have been banned in the US.
The agency added that DMAA products have been linked to around 60 deaths or illness, including heart problems and nervous system or psychiatric disorders.