- NPR, Friday, January 24, 2014 8 AM
A new study of colas has found varying levels of a chemical compound classified as a possible human carcinogen in many popular brands. The study, from Consumer Reports, has resulted in
the Food and Drug Administration taking a closer look at the compound, known as 4-methylimidazole — 4-MEI, for short. CR detected low levels of 4-MEI
in Coca-Cola, Coke Zero and Diet Coke. But it found higher levels in some Pepsi products, particularly in Pepsi One.
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