Synthetic food dyes — ubiquitous in brightly colored candies, cereals, and snacks — are facing heightened scrutiny as research links them to cancer and behavioral disorders in children. Nearly 1 in 5 packaged foods in the U.S. contains these additives, with products marketed to kids using them three times more frequently than others, according to public health advocates.

• Widespread Use in Kids' Products: Nearly 1 in 5 packaged foods in the U.S. contain synthetic dyes, with products marketed to children (like candy, cereals, and sports drinks) using them at three times the rate of other foods.

• Cancer and Behavioral Risks: Three major dyes — Red 40, Yellow 5, and Yellow 6 — are linked to cancer (per the CSPI) and studies tie them to hyperactivity and ADHD in children, prompting bans in California and the EU.

• Synergy with Sugar: Foods with artificial dyes contain 141% more sugar on average, suggesting manufacturers use bright colors to make sugary, less nutritious products more appealing to kids.

• Regulatory Shifts: While California has banned Red 3 and six other dyes in school foods, the FDA plans a nationwide ban by 2027, and some companies (like Nestlé) already avoid synthetic dyes entirely—proving safer alternatives exist.

Food dyes under fire: cancer, hyperactivity and regulatory pushback

Amid growing pressure, California and the European Union have already banned certain dyes, while the U.S. Food and Drug Administration (FDA) plans nationwide restrictions by 2027. But with companies like Nestlé proving natural alternatives are viable, critics question why change isn't happening faster.