Turns out that HFCS - High Fructose Corn Syrup - has contains mercury.
MONDAY, Jan. 26 (HealthDay News) -- Almost half of tested samples of commercial high-fructose corn syrup (HFCS) contained mercury, which was also found in nearly a third of 55 popular brand-name food and beverage products where HFCS is the first- or second-highest labeled ingredient, according to two new U.S. studies.
"Mercury is toxic in all its forms. Given how much high-fructose corn syrup is consumed by children, it could be a significant additional source of mercury never before considered. We are calling for immediate changes by industry and the [U.S. Food and Drug Administration] to help stop this avoidable mercury contamination of the food supply," said the Institute for Agriculture and Trade Policy's Dr. David Wallinga, a co-author of both studies.