HHS Push to Phase Out Synthetic Food Dyes Highlights Limits and Risks of 'Natural' Alternatives

The Department of Health and Human Services, under Secretary Robert F. Kennedy Jr., has accelerated efforts to remove petroleum-based synthetic colorings from foods, drinks and some medical products, citing links between certain dyes and behavioral issues in children and broader public health concerns. The agency and allied state governments have begun bans and voluntary phase-outs, and the U.S. Food and Drug Administration said this year it approved four new color additives while banning another and plans to work with manufacturers to phase out all petroleum-based synthetic dyes from the food supply by the end of 2027.

Industry executives and food-safety experts warn that swapping synthetic dyes for naturally derived alternatives is not a straightforward public-health win. Natural colorings are subject to different regulatory scrutiny, can be harder to source and stabilize, and may introduce other contaminants or processing residues that affect safety and product quality, they say.

Synthetic color additives are tightly regulated and subject to batch-by-batch oversight: companies producing synthetic dyes typically submit samples of each batch to the FDA for inspection to ensure compliance with safety specifications. Natural colorings, however, often fall under a self-certifying system in which manufacturers attest that their products meet regulatory standards, said Paul Manning, chairman and CEO of Sensient Technologies, a major U.S. maker of both natural and synthetic food-color additives.

"Just because they’re natural does not make them safer," Manning said, noting that raw plant-based sources can be treated with pesticides and herbicides, be contaminated by bacteria, and require solvent extraction processes that can leave residues. Sensient said testing of raw materials from growers produced "alarmingly high failure rates" for unsafe amounts of solvents and pesticides, and the company developed a Certasure certification program to evaluate and verify raw-material supplies.

Four naturally derived color additives have been cleared for use in U.S. foods in recent months: Galdieria extract blue from red algae, butterfly pea flower extract that ranges from bright blue to purple and green, calcium phosphate for white color in certain candies and ready-to-eat chicken, and gardenia blue from gardenia fruit. Supporters of the transition emphasize that many manufacturers and retailers have already been moving away from synthetic dyes: Kraft removed artificial colors, flavors and preservatives from its boxed macaroni and cheese in 2016; General Mills has said it will remove synthetic dyes from cereals and foods provided to schools this summer; and companies including J.M. Smucker Co. and Kraft‑Heinz have pledged to eliminate synthetic dyes from products by 2027.

But multiple technical and supply challenges remain. Natural color sources generally require larger quantities to achieve the same visual intensity as synthetic dyes. Manning estimated that it can take about eight parts of a natural color to reach the same shade that synthetic additives yield in finished foods. That higher usage drives increased agricultural demand and raises the potential for variation in color, taste and stability.

Scaling agricultural and processing capacity is not instantaneous. Manning said it typically takes about five years to ramp up a reliable supply chain for a new natural color, because growers must be recruited and trained and land and logistics secured. Several of the newly approved natural additives are not widely cultivated in the United States; butterfly pea flower, for example, commonly comes from Southeast Asia. Companies also face higher global demand and recently raised tariffs on imports, which can raise costs and complicate sourcing.

Technical difficulties in matching the appearance of synthetic dyes have already affected sales for some food makers, industry executives report. Consumers often expect the vivid, consistent hues long associated with synthetic colors, and manufacturers have encountered complaints or perceived taste differences—even when coloring should not affect flavor—when shades are muted or exhibit variability.

Regulatory gaps worry some observers. Under the existing framework, synthetics undergo more direct FDA oversight while many natural products rely on manufacturer attestations. That distinction has prompted firms such as Sensient to create proprietary testing regimens and certifications to ensure raw-material compliance with U.S. legal specifications.

State governments are moving in parallel with federal efforts. Several states, including California, West Virginia and Texas, have committed to expediting the removal of petroleum-based synthetic dyes from meals served in school nutrition programs. The FDA’s stated plan to work with industry toward voluntary phase-outs through 2027 aims to coordinate a broader transition, but it depends on manufacturers, suppliers and public agencies to align timelines and standards.

Public-health advocates point to research linking some synthetic food dyes to behavioral effects in children, a concern cited in the Make America Healthy Again report released by HHS. The agency has already taken targeted actions against particular synthetic colorings and is pursuing additional naturally derived options for approved use. FDA officials have not provided a timeline for full removal of all synthetic dyes from the U.S. food supply beyond the 2027 goal for voluntary cooperation.

Food scientists and manufacturers say that delivering a working, safe and widely available natural-color supply will require coordinated investment in agriculture, stricter raw-material testing, expanded processing capacity and technical solutions to stabilize color and maintain product appearance and shelf life. European markets already rely heavily on natural colorings—about 80% in some estimates—offering lessons and supply chains that U.S. companies may lean on, but industry leaders warn the global market will be strained as more regions seek natural alternatives.

As federal and state agencies push the move away from petroleum-derived colors, regulators, manufacturers and public-health experts face intersecting questions about how to ensure that substitutes do not introduce new risks. Companies and certification programs are developing standards and testing protocols to address contamination and solvent residue concerns, but industry executives say that building the supply chain, ensuring consistent quality, and preserving the visual and sensory expectations of consumers will take years of investment and oversight.

The debate underscores a broader regulatory and scientific challenge: replacing an established group of synthetic additives with alternatives that meet safety, performance and availability requirements while avoiding unintended consequences. HHS and the FDA have signaled that policy changes will continue, but the pace and practicality of a nationwide shift to natural colorings will depend on how firms, state programs and regulators manage supply, testing and quality-control gaps during the transition.