Red 40 is making headlines again as lawmakers debate whether food dyes should be banned in the US. Here's what health experts say about its safety.

T he U.S. Food and Drug Administration has banned the use of red dye No. 3 in foods, more than three decades after ...

Red dyes, including Red No. 3 and Red No. 40, are synthetic colorants made from petroleum. They enhance food's visual appeal ...