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Openshaw, R. (2025, January 31). Food Dyes Rebranded: The Cover-Up Names You Need to Know. GreenSmoothieGirl. https://greensmoothiegirl.com/food-dyes-new-names/


A landmark 2007 study at the University of Southampton tested mixtures of six common food dyes alongside sodium benzoate. The results showed measurable increases in hyperactive behaviors in children, even those without ADHD. This groundbreaking research prompted scrutiny and debate around the world.

In 2011, the U.S. Food and Drug Administration reviewed the evidence and acknowledged that while most people tolerate small amounts of these dyes, some children may experience adverse behavioral effects. The FDA stopped short of imposing bans, but recommended further study and voluntary warnings.


The Center for Science in the Public Interest’s report, “A Rainbow of Risks,” highlights serious concerns: Red 3 has caused thyroid tumors in animal studies; Yellow 5 and Yellow 6 can trigger asthma and hives in sensitive individuals; and research by the National Toxicology Program links certain dyes to cancer risks in lab animals.
“The evidence is strong enough that these dyes should not be in children’s food. We’re using our children as guinea pigs.” — Dr. Michael Jacobson, Executive Director, CSPI

National Food Museum. (2025, March 8). Board of Directors - National Food Museum. https://www.nationalfoodmuseum.org/board-of-director/

Rochester review :: University of Rochester. (n.d.). https://www.rochester.edu/pr/Review/V80N5/0201_letters.html
“These synthetic dyes serve no purpose other than marketing. And yet, they are biologically active.” — Dr. Bernard Weiss, Environmental Medicine, University of Rochester

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