"Corn Syrup's Mercury Surprise"

When FDA researcher Renee Dufault found residual mercury in high fructose corn syrup in 2004, the FDA ordered her to stop investigating. Mercury is used to make lye -- and lye is used to make the corn syrup that constitutes one in every ten calories that Americans eat.

Melinda Wenner reports for Mother Jones in the July/August 2009 issue.