Made from petroleum, red dye 40 is a synthetic food dye. Some studies suggest a link between red dye 40 and ADHD behavior; the dye might trigger or exacerbate behavioral changes in sensitive children.

Hell's Kitchen season 23 episode guide Hell's Kitchen season 23 episode 1: "Eighteen contestants set out to impress Chef Ramsay in the Signature Dish Challenge before embarking on their first dinner ...