Add Yahoo as a preferred source to see more of our stories on Google. The Food and Drug Administration has said it is banning the use of Red No. 3, a synthetic dye that has long been used in the U.S.

Add Yahoo as a preferred source to see more of our stories on Google. Some parents say that red dye No. 3 in foods causes behavioral problems in their kids. (Photo illustration: Celina Pereira for ...

Red Dye No. 40, a synthetic food dye that's used to achieve a bright crimson color in condiments and candy alike, has been a hot topic among policy makers and food safety advocates in the U.S. RELATED ...