Quick Answer: Yellow 5 (Tartrazine) is one of the Southampton Six dyes linked to hyperactivity in children. It requires warning labels in the EU. Some studies link it to asthma and hives in sensitive individuals. It is banned in Norway and Austria but legal in the US.
Yellow 5 (Tartrazine, E102) is a synthetic lemon-yellow azo dye used in Doritos, Mountain Dew, Kraft Mac & Cheese, Cheetos, and many processed foods. It is one of the most widely used food dyes in the world. The 2007 Southampton study linked Yellow 5 (combined with other dyes and sodium benzoate) to increased hyperactivity in children. The EU requires products containing Yellow 5 to carry a warning label about potential effects on attention and activity in children. Individual sensitivity reactions include asthma exacerbation, urticaria (hives), and rhinitis, particularly in aspirin-sensitive individuals. A 2012 meta-analysis published in the Journal of the American Academy of Child & Adolescent Psychiatry confirmed a small but statistically significant link between artificial food colors and ADHD symptoms. Yellow 5 was banned in Norway and Austria.
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Doritos, Mountain Dew, Kraft Mac & Cheese, Cheetos, Skittles, Starburst, Gatorade Lemon-Lime, Lucky Charms, and many yellow/green-colored foods contain Yellow 5.
Yes. Some people, especially those sensitive to aspirin, may experience hives, asthma, or nasal congestion from Yellow 5. The incidence is estimated at 1 in 10,000 people.
CheckIt AI. (2026). "Is Yellow 5 (Tartrazine) Safe? — CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/answers/is-yellow-5-safe"Is Yellow 5 (Tartrazine) Safe? — CheckIt AI." CheckIt AI, Climaverse PBC, 2026-03-05. https://getcheck.it/answers/is-yellow-5-safe.<a href="https://getcheck.it/answers/is-yellow-5-safe">Is Yellow 5 (Tartrazine) Safe? — CheckIt AI — CheckIt AI</a>@misc{checkit2026answersisyellow5safe,
title = {Is Yellow 5 (Tartrazine) Safe? — CheckIt AI},
author = {CheckIt AI},
year = {2026},
publisher = {Climaverse PBC},
url = {https://getcheck.it/answers/is-yellow-5-safe},
note = {Retrieved 2026-03-05}
}