"Double dyeing achieved a sophisticated imitation that could easily pass for authentic royal purple ," Dr. Sukenik explains. "Madder and woad were widely available, far cheaper, and far easier to work ...

The Simply NKD line of the beloved snacks will have no dyes or artificial flavors, but you can still buy the original eye-wateringly orange versions.

Red Dye No. 3, a food coloring linked to cancer in animal studies, is being banned in several states. Find out why it's ...

Climate activists dyed Venice's Grand Canal green Saturday, as countries at a UN climate conference in Brazil struggled to ...