The food coloring has been linked to thyroid cancer in rats and is already banned in parts of Europe, Asia and certain US ...

Cancer. DNA damage. Tumors. These are all very scary things to think about. Not only can they be genetic, but it seems like just about anything can give it to you.

For example, some studies have linked Red 40 to hyperactivity, according to the Cleveland Clinic, but further studies are still needed to determine a direct link between the dye and the condition.