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Are dye free skittles actually better for my kid?

Dye-free Skittles aren't proven to be healthier overall, but the evidence on artificial dyes and hyperactivity is genuinely mixed, so choosing dye-free is a reasonable, low-risk preference rather than a medical necessity.

Health Canada has reviewed the dye-behaviour research and says it isn't strong enough to prove cause and effect, while some clinical trials do show small effects in certain children.

Strength of evidence

Mixed

Evidence includes one large randomized controlled trial and a meta-analysis of trials showing a small effect, but Health Canada's own review of this same research found it insufficient to prove dyes cause behaviour problems.

What the evidence says

Skittles without dyes are colored using plant or vegetable extracts instead of synthetic dyes like Red 40 or Yellow 5. In terms of sugar, calories, and overall nutrition, dye-free and regular Skittles are basically the same candy, so dye-free isn't a 'healthy' swap in the way fruit or vegetables would be.

The real question is whether synthetic dyes affect kids' behaviour, like making them more hyperactive. A well-known British study put groups of 3-year-olds and 8 to 9-year-olds on drinks with food dye mixes or a plain placebo, without anyone knowing which was which. Researchers found that food additives and hyperactive behaviour in 3-year-old and 8/9-year-old children in the community showed a link. Kids given the dye mixture showed more hyperactive behaviour than kids given the placebo.

A separate analysis pooling fifteen similar trials found artificial food colours had a real but small effect on hyperactivity, and the effect was strongest in trials that first screened for children who seemed sensitive to dyes. This suggests some kids react more than others, and for most children the effect, if it exists, is minor.

Health Canada, the agency that regulates food additives here, has looked at this same body of research. They concluded the evidence isn't strong enough to prove synthetic dyes cause behaviour problems, so they haven't restricted these dyes. Canadian food safety testing reports echo this, noting a suggested correlation that has not been conclusively proven.

So here's the honest picture: there's some real science behind the concern, but it's not settled, and Health Canada doesn't currently see enough proof to act. If you notice your child seems to get wound up or moody after eating dyed candy, trying dye-free versions is a reasonable, harmless experiment. But there's no strong evidence every child needs to avoid dyes, and dye-free candy isn't otherwise better for teeth, weight, or nutrition.

Sources

✓Reviewed by CH, MD, FRCPC

Reviewed by a specialist physician certified by the Royal College of Physicians and Surgeons of Canada, who has read this answer against the sources listed above and confirmed it reflects them. That is not medical advice about your child. How we review

Answer checked August 5, 2026

Educational information only. Not medical advice, not a diagnosis, and no doctor-patient relationship is created by using this. Founded Parent has not examined your child and does not know their history, so this may not apply to you. In an emergency, call your local emergency number. What Founded Parent cannot do

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