Food companies have two years to get red dye No.3 out of their products. But other synthetic dyes have also raised concerns, because of behavioral issues in kids. Here's what parents need to consider.

With Wednesday's ban of Red No. 3, there are now 8 artificial dyes in America's food supply. Discover what dyes remain, the health risk to humans, and the companies involved.

Red 3, often used in cakes, candies and drinks to achieve a bright cherry-red color, has long been criticized for its health risks.