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?

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?

What to know about Red Dye No. 40 and artificial food coloring used in thousands of food and drink products sold in the U.S.