The first time my sister-in-law asked me if there was “Red 40” in the snack I was about to hand my nephew, I was caught off guard. “Red 40?” She reached out for the package of gummy snacks and pointed to the ingredients list. Red Dye #40 is the most widely used food coloring in the world. Made of petroleum, Red No 40 is often the topic of debate. There is increasing evidence some people are sensitive to food dyes, causing allergies, migraines, and even unwanted behavior in children. Though research is still needed, when in doubt, go without! Here are some popular items containing Red 40, and what to trade them in for!