US regulators have banned the dye Red 3 from the food supply due to cancer concerns, following its restriction in the EU. The FDA's decision, influenced by studies showing cancer in lab rats, removes Red 3 from approved food additives. The ban will take effect in January 2027 for food manufacturers and January 2028 for drug makers. Consumer advocates support the ban, while some manufacturers may challenge it, arguing the dye is safe for human consumption.