Red 3

Flavors + Colors

  • Potentially Harmful

Definition

Red 3 (Erythrosine) is a synthetic dye largely make of iodine. It is commonly used in candy, popsicles and cake decorating gels. Approved for use in food and ingested drugs. No longer approved for cosmetics, external drugs or lakes (another type of synthetic coloring).

Also Known As

Red #3, RED NO. 3, Erythrosine

Health Impact

Some people, especially children, may be sensitive to food dyes, and have experienced allergic reactions when consuming them. Artificial food dyes have also been linked to increased behavioral problems in children, especially those with ADHD, because they may cause chemical changes in the brain, inflammation, and depletion of minerals that are important to growth and development.

Sources

Products containing Red 3

Mentioned in the blog

Are Food Dyes Finally Getting the Boot?

June 17, 2025

Are Food Dyes Finally Getting the Boot?

Colorful snacks may be losing their artificial edge as states crack down on synthetic food dyes and federal regulators signal big changes ahead.