Following the ban of red dye No. 3 in the United States, experts weigh in on the potential health risks of red dye No. 40, yellow No. 5 and others.

Red No. 3, chemically known as erythrosine, was first introduced into foods in 1907. Companies subsequently added it to thousands of products to boost their colors over the decades, often in snacks like ice cream and candy marketed directly to children.

Red Dye No. 3, also known as erythrosine, is a synthetic food dye that gives foods and drinks a bright red color. It is also sometimes used in oral medicines and dietary supplements. It first was approved for use in food in 1907. It's made from petroleum.