Interesting..

From http://www.msnbc.msn.com/id/29955927/ns/health-diet_and_nutrition/

Proponents say:
HFCS contains mercury.

The verdict: Nearly half of the 20 HFCS samples tested in a recent study contained small amounts of potentially harmful mercury, according to a report in Environmental Health. While the Corn Refiners Association argues that the research was based on outdated information, another study by the Institute for Agriculture and Trade Policy found that one-third of all HFCS-containing foods it bought in the fall of 2008 tested positive for the toxin. The researchers believe that HFCS is probably the source: A compound known as caustic soda, which is used to separate the corn starch from the kernel, can be tainted with mercury, and there's no way for you to know whether the caustic soda used was contaminated, according to study author David Wallinga, MD. Although much of the US production of caustic soda uses mercury-free technology, not all manufacturers worldwide have followed suit, adding fuel to the argument for minimizing HFCS intake.