Red Dye 40 Reactions and Allergies Allergic reactions to a food can cause tingling and itchiness in the mouth, swelling of the lips, face, tongue, and throat, or hives.

Learn what Red Dye 40 is used for, what foods contain it, and whether or not research supports its link to behavioral issues in children or cancer.

Food dye allergies are rare, but if you have one, you may be at risk for an anaphylactic reaction. Here’s what you need to know.

As the discussion around artificial dyes and ingredients grows, an Upstate mom says she sticks to feeding her children whole foods.

This doesn’t happen in the presence of red food dyes. And second: Allergists do not currently have a standardized, validated test to perform for patients who are concerned about a red dye allergy.

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.

Red dye #3 is commonly found in food like cookies, candies, frosting and many other processed foods. Two studies showed cancer in laboratory male rats when exposed to high levels of red dye #3.

What products can Red No. 3 be found in? The Food and Drug Administration is ordering food and drug makers to remove the dye called Red 3 from products ...

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 ...

The U.S. Food and Drug Administration banned Red No. 3 last dye, leading those to think Red Dye No. 40 could be next. How are these dyes different?

“Red dye 40 is not definitively proven to cause cancer, but it is associated with development of allergic reactions in susceptible individuals,” Johnson-Arbor says.