U.S. FDA: Survey Data on Lead in Women's and Children's Vitamins
In early 2007, FDA became aware of reports of elevated lead levels in certain vitamins, which became an issue of concern to FDA, Congress, and the public. This survey was conducted to determine the content of lead (Pb) in vitamins labeled for women and children. The Pb content of 324 multivitamin-mineral products purchased over the Internet was determined using microwave assisted nitric acid digestion and inductively coupled plasma mass spectrometry.
1 Cryogenic grinding was used to composite soft samples such as oil filled capsules and candy-like products such as gummies and jelly beans. The median and maximum mass fractions were 0.160 and 2.40 mg/kg, respectively. Only four samples exceeded 1 mg/kg.