Some of the most widely known foods and products have unnatural colorants. Red dye 40 is probably one of the more well-known examples of this. From Jello to cereal to Gatorade, Red 40 and its seven ...

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.

In January, the Food and Drug Administration banned Red Food Dye No. 3, which California had banned in October, and at least 10 other states have similar bills moving through their legislatures to ...