Red Dye No. 3 Banned in the US as Food Safety Concerns Surge

On January 15, 2025, the U.S. Food and Drug Administration (FDA) officially banned Red Dye No. 3, also known as erythrosine. This synthetic food coloring has been widely utilized in products like candy, ice cream, and breakfast cereals to enhance their visual appeal. While other dyes, such as Red No. 40, remain permitted, the ban on Red No. 3 raises important questions about food safety.

The crux of this decision lies in the Delaney Clause, part of the Federal Food, Drug, and Cosmetic Act established in 1958. This provision prohibits food additives that are known to cause cancer in humans or animals. Although no definitive studies have proven that Red No. 3 is carcinogenic in humans, research from the 1980s indicated an increased risk of thyroid tumors in male rats subjected to this dye. Following these alarming findings, Red No. 3 was banned in cosmetic products in 1990, but it took over 30 years for similar restrictions in food.

Despite the lack of human data, the dye's controversial status remains. While both Red No. 3 and Red No. 40 originate from petroleum, they differ chemically, with Red No. 3 containing iodine. The future of Red No. 40 is uncertain, but manufacturers have until 2027 to phase out Red No. 3 from their food products. As they transition, it’s likely that Red No. 40 will be adopted as a substitute to maintain vibrant colors.

Curious whether your favorite snacks contain these dyes? Many brightly colored treats, such as candy corn, popsicles, and jellybeans, often include these additives. Surprisingly, even some vegetarian meats and protein shakes may contain them. If you want to be informed, simply check the ingredients on the label. In Europe, Red No. 3 is labeled as E127, while Red No. 40 is marked as E129.

As food companies move away from Red No. 3, they may face stricter regulations in various states and countries. For instance, the California Food Safety Act signed in late 2024 prohibits the use of Red No. 40 in public school lunches, reflecting growing concerns over food dyes. Both Red No. 3 and Red No. 40 have been linked to hyperactivity in children, particularly when consumed in large quantities.

The ban on Red Dye No. 3 highlights an urgent need for consumers to stay informed about the ingredients in their food. With public health at stake, the conversation around food dyes is just beginning.