The Detroit Free Press: Coke, Pepsi make changes to avoid cancer warning
In an example of the effects of junk science coming out of the Golden State, Pepsi and Coke are changing the ingredient for the caramel color in their products as a result of one study that found the ingredient might cause cancer in lab rats - at a dosage equivalent of a person drinking more than 1000 cans of Coke or Pepsi per day.
I daresay, if you do drink more than 1000 cans of Coke or Pepsi per day, you've got way more to worry about health-wise than the minuscule possibility of 4-methylimidazole causing cancer.
Oh, and the careful science that led California to require the "causes cancer" warning for the chemical:
The American Beverage Association also noted that California added the coloring to its list of carcinogens with no studies showing that it causes cancer in humans. It noted that the listing was based on a single study in lab mice and rats.California.