Do food dyes actually cause ADHD?

Current regulatory consensus is that synthetic dyes do not CAUSE ADHD, but multiple studies — most prominently the 2007 Southampton study — show they can measurably increase hyperactivity and attention problems in a subset of children, including those with no prior ADHD diagnosis. The EU requires warning labels on this basis; the FDA has reviewed the same evidence and is pursuing a voluntary industry phase-out rather than mandatory labels.

Which food dyes are linked to hyperactivity?

Six synthetic dyes carry EU warning labels: Red 40 (Allura Red), Yellow 5 (Tartrazine), Yellow 6 (Sunset Yellow), Red 3 (Erythrosine — now banned by FDA), Blue 1 (Brilliant Blue), and Blue 2 (Indigotine). These are the same 6 included in the voluntary U.S. industry phase-out by end of 2026.

How can I find products without these dyes?

We maintain an automated list of every product in our database that does NOT contain the 6 synthetic dyes. See /products/list/no-dyes — updated continuously from Open Food Facts ingredient data. The most common U.S. brands with dye-free alternatives include Annie's, Earth's Best, Amy's, and many store-brand organic lines.

Are natural food colors safer?

Natural colors (annatto, beet juice, turmeric, spirulina, carmine from insects) carry their own caveats — annatto allergies, carmine is animal-derived and can trigger reactions in rare cases — but they are not associated with the hyperactivity findings in the Southampton study. They are a meaningful step for parents trying to reduce synthetic dye exposure.

Parent's guide · Evidence review

Food additives linked to ADHD & hyperactivity.

The European Union mandates warning labels on foods containing any of 6 synthetic food dyes: "may have an adverse effect on activity and attention in children."The FDA reviewed the same evidence and is pursuing a phase-out by end of 2026. Here's what parents need to know, and how to find products without them.

The 6 dyes the EU flags for children.

Timeline · The evidence and the regulations.

2007
Southampton Study
University of Southampton publishes the landmark randomized trial linking a mix of 6 dyes + sodium benzoate to measurable increases in hyperactivity in children.
2010
EU mandatory warnings
EU Regulation 1333/2008 enters into force: foods with any of 6 named dyes must carry 'may have an adverse effect on activity and attention in children'.
2011
FDA panel vote
FDA Food Advisory Committee votes 8-6 AGAINST warning labels in the U.S. FDA cites insufficient causal evidence at typical exposure.
2021
CA OEHHA report
California Office of Environmental Health Hazard Assessment concludes that synthetic food dyes can cause or exacerbate behavioral effects in some children.
2023
CA Prop 12 bill
California AB 2316 prohibits 6 named dyes in public school food starting 2027 — first U.S. state-level action tied to school meals.
2025
FDA revokes Red Dye #3
First FDA food-dye ban in 35 years. Compliance window through 2027.
2025
HHS voluntary commitment
Major U.S. manufacturers agree to phase out 6 synthetic dyes by end of 2026.