Red dye No. 3 has been permissible for use in food despite the Delaney Clause of the FDA’s Federal Food, Drug, and Cosmetic Act. The clause, in part, “prohibits the FDA from approving a color additive that is ingested if it causes cancer in animals or humans when ingested,” according to the agency .

So what makes Red No. 3 so controversial? This synthetic food dye is commonly used to give food and drinks their bright cherry-red color. However, it has raised concerns because s