Introduction
Food additive regulations are not static -- they evolve as new scientific evidence emerges and as regulatory agencies refine their assessment methodologies. The period spanning 2024 through 2025 saw several significant regulatory shifts across major markets, including the United States, the European Union, and the Asia-Pacific region. These changes affected color additives, preservatives, and a range of processing aids.
This guide documents the most notable regulatory changes during this period and provides context for understanding what they mean.
FDA Color Additive Bans (January 2025)
In January 2025, the FDA revoked the authorization for Red No. 3 (Erythrosine, E127), a synthetic red dye that had been used in the United States for decades. The decision was based on studies showing thyroid tumors in male rats exposed to high doses of the substance.
This action made the United States one of the last major markets to restrict erythrosine for food use. The EU had already placed significant restrictions on its permitted food categories, and several countries had limited its applications years earlier. The Delaney Clause of the U.S. Federal Food, Drug, and Cosmetic Act -- which prohibits any additive shown to cause cancer in humans or animals -- provided the legal basis for the FDA's action, even though the mechanism observed in rats (thyroid hormone disruption) is considered to be species-specific by some toxicologists.
Concurrently, the FDA undertook reviews of several other synthetic color additives, reflecting a broader trend of reassessing older authorizations against current scientific standards.
EU Re-Evaluation Program Progress
EFSA's systematic re-evaluation of all food additives authorized in the EU before January 20, 2009, continued through 2024 and 2025. This program, mandated by Regulation (EU) No 257/2010, represents the most comprehensive reassessment of food additive safety ever undertaken by a regulatory body.
Notable completed re-evaluations during this period include:
- Phosphates (E338-E343, E450-E452): EFSA lowered the group Acceptable Daily Intake (ADI) for phosphates, citing concerns about cardiovascular and renal effects at higher exposure levels. This revision prompted the European Commission to review maximum permitted levels across food categories.
- Color additives: Several synthetic color additives had their conditions of use tightened, with reduced maximum permitted levels in certain food categories. EFSA's re-evaluations frequently identified that actual exposure levels could exceed the ADI for high consumers, particularly children.
The re-evaluation program has demonstrated that safety assessments from decades ago do not always hold up under modern toxicological scrutiny, and that periodic reassessment is a necessary part of a functioning regulatory system.
Titanium Dioxide (E171) Aftermath
Titanium Dioxide (E171) was banned as a food additive in the European Union effective August 7, 2022, following an EFSA opinion that concluded genotoxicity concerns could not be ruled out. In 2025, the EU Court of Justice upheld this ban, rejecting legal challenges from industry groups that had argued the scientific evidence was insufficient to justify the prohibition.
Meanwhile, other major regulatory authorities -- including the FDA (United States), FSANZ (Australia and New Zealand), and Health Canada -- continued to permit the use of titanium dioxide in food. These agencies conducted their own reviews of the same underlying scientific data and reached different conclusions about the level of concern warranted.
This divergence represents one of the most prominent examples of transatlantic regulatory disagreement on food additives. The difference stems largely from how each agency applies uncertainty factors: the EU's approach incorporated the precautionary principle, while other agencies required a more definitive demonstration of risk before acting.
Nitrite/Nitrate Scrutiny
Growing scientific evidence on nitrosamine formation in processed meat products led to renewed regulatory scrutiny of nitrite and nitrate preservatives across all major jurisdictions during 2024 and 2025. The additives in question include E249 (Potassium Nitrite), E250 (Sodium Nitrite), E251 (Sodium Nitrate), and E252 (Potassium Nitrate).
Nitrosamines, which can form when nitrites react with amines during high-temperature cooking or in the acidic environment of the stomach, have been classified as probable carcinogens. However, the regulatory situation is complicated by the fact that nitrites serve a critical food safety function: they are among the most effective agents for preventing the growth of Clostridium botulinum, the bacterium responsible for botulism.
No country moved to ban these preservatives outright during this period. Instead, the regulatory response focused on tightening maximum permitted levels in specific food categories, particularly processed meat products. The European Commission revised downward the maximum permitted ingoing amounts in several meat categories, and EFSA published updated exposure assessments indicating that typical dietary exposure remained within -- but closer to -- the established ADI.
What These Changes Mean
Regulatory changes to food additives reflect the evolving state of scientific understanding. They are the product of systematic review processes, not arbitrary decisions. When an agency revises the status of an additive, it is typically responding to new data, improved analytical methods, or updated risk assessment frameworks.
The divergence between regions on substances like titanium dioxide and erythrosine highlights the reality that identical scientific data can lead to different regulatory conclusions when filtered through different legal frameworks and risk management philosophies. The EU's precautionary approach, the FDA's Delaney Clause framework, and the cost-benefit analyses used by other agencies each produce different outcomes -- without any single approach being objectively "correct."
For a detailed comparison of how different regions approach these decisions, see our guide on additives banned in the EU but approved elsewhere.
Note: This guide reflects regulatory developments through early 2025. For the most current regulatory status of any specific additive, consult the relevant regulatory authority (FDA, EFSA, FSANZ, Health Canada, or MHLW) directly.