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Caramel Color

CSPI says the caramel coloring in Coke, Pepsi and other sodas yields 2-methylimidazole and 4-methylimidazole, which caused lung, liver and thyroid cancer in lab rodents. California regulators set a significant-risk level at 16 micrograms a day; a 12-ounce can holds about 130. The FDA disagrees.

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