US regulator bans red dye No. 3

Red dye No. 3 was recently banned by the FDA. But what are the differences between it and the similar red dye No. 40, and ...
Related video above: Doctor discusses why FDA banned Red Dye No. 3 Made from petroleum and chemically known as erythrosine, red dye No. 3 is a synthetic color additive used to give foods and ...