FDA Food Additive Policy Faces Scrutiny Over Safety Review Concerns

The FDA food additive loophole debate is gaining attention as the U.S. Food and Drug Administration considers changes to how certain food chemicals qualify for regulatory exemptions. The proposal could expand the agency’s existing Threshold of Regulation (TOR) process to cover substances added directly to food, not just chemicals that migrate from packaging or other food-contact materials.

The change raises questions about how the government evaluates chemical exposure before substances enter the food supply. Consumer advocates may question whether an exemption offers enough scrutiny. However, the proposal does not give companies unrestricted permission to add any chemical to food.

The FDA published its proposed rule, titled “Substances Generally Recognized as Safe,” on August 11, 2026. It remains a proposal, not a final rule. Public comments are due December 9, 2026.

The proposal covers several parts of food ingredient regulation. These include the TOR exemption and the process for notifying the FDA about substances considered Generally Recognized as Safe, or GRAS. Understanding the difference matters when judging what the changes could mean for food safety.

What Is the FDA Threshold of Regulation Exemption?

The Threshold of Regulation exemption is an existing FDA process. It allows certain substances to avoid food-additive regulation when the amount expected to enter food is so small that it presents no appreciable risk under the applicable criteria.

Until now, the TOR process has focused on substances used in food-contact articles. These include packaging materials and equipment used during food processing. A chemical may migrate from such material into food in very small amounts.

The FDA assesses information about the substance, its intended use and the amount people could consume. Existing criteria include cancer-related safeguards and limits on expected dietary exposure. The agency can also refuse an exemption when available information indicates a possible public-health risk.

Importantly, TOR is not the same as ordinary food-additive approval. A food additive generally requires an applicable FDA authorization before companies can use it for a proposed purpose. A qualifying TOR exemption offers a different regulatory route because exposure is expected to fall below the relevant threshold.

The proposed rule would broaden the process. It would allow qualifying substances added directly to food to seek a TOR exemption, rather than limiting the process to substances associated with food-contact materials.

Why Is the FDA Food Additive Loophole Controversial?

The central concern is whether a broader exemption could allow some substances to avoid the usual premarket food-additive review. Critics may also question how much toxicology evidence the FDA would examine before granting an exemption.

Those concerns deserve careful examination, but the policy details matter. The proposal does not simply remove every safety requirement. Instead, it would extend an existing process to additional uses while retaining eligibility criteria and requiring information about the substance and its expected exposure.

Under the proposed approach, applicants would provide the chemical’s identity, conditions of use, estimated dietary exposure and relevant toxicological information. They would also provide information about potential environmental effects.

Still, the type and depth of evidence required for a TOR request differ from a full food-additive safety review. The FDA explains that the process is designed for uses expected to produce very low dietary exposure. That difference is central to the debate.

Transparency is another issue. Consumers often have limited information about how individual ingredients were evaluated. A regulatory exemption can make it harder for the public to compare the evidence behind different substances unless the agency clearly explains its decisions.

The proposed rule also addresses GRAS notifications, a separate but related issue. The FDA wants to replace the current voluntary GRAS notification system with a mandatory one for many uses. That part of the proposal could increase the information available to the agency and the public.

What Does “Non-Carcinogenic” Actually Mean?

Non-carcinogenic generally refers to a substance that has not been shown to cause cancer under the conditions assessed. It does not mean that the substance is harmless in every possible circumstance.

Scientists evaluate different kinds of potential harm. Depending on the chemical, researchers may examine effects on organs, reproduction, development or the nervous system. Evidence about one health outcome does not automatically answer questions about another.

Dose and exposure also matter. A substance’s effects can depend on how much enters the body, how often exposure occurs and how long it continues. The route of exposure and the quality of available research matter as well.

The proposed TOR criteria address more than a simple label of “non-carcinogenic.” They include exposure-related conditions and other safety considerations. Therefore, it would be inaccurate to say that the proposal automatically approves every chemical that is not known to cause cancer.

At the same time, limited evidence can leave unanswered questions. That is why the quality of the submitted data, the exposure estimate and the FDA’s explanation of its decision are important.

How Are Food Additives Normally Evaluated?

Under the federal food-additive framework, companies generally must obtain FDA authorization for a food additive before using it for a proposed purpose. The review considers the substance’s intended use and the evidence supporting its safety.

That evidence can include toxicology studies, estimates of how much people may consume and information about the conditions in which the substance will be used. The agency evaluates whether the proposed use meets the applicable legal safety standard.

However, not every food ingredient follows the same path. Some substances qualify as GRAS under their intended conditions of use. Other ingredients may be covered by existing regulations or specific statutory provisions.

Under the current GRAS system, a company may reach its own conclusion that a substance is generally recognized as safe. It can notify the FDA, but notification is not universally required under the existing voluntary program.

The proposed rule would change that system by requiring GRAS notices for many uses, subject to specified exceptions. It would also create a time-limited option for certain substances already in commerce to submit streamlined information.

These distinctions are important because food-additive approval, GRAS status and a TOR exemption are different regulatory pathways. They should not be treated as interchangeable.

Why Ultra-Processed Foods Are Part of the Debate

Ultra-processed foods have become a focus of public discussion about nutrition and health. These products can contain combinations of ingredients designed to improve taste, texture, appearance, shelf life or convenience.

However, the term covers a wide range of foods. It does not prove that every product or ingredient is unsafe. Each chemical must be evaluated according to its own evidence and intended use.

Some research has linked higher consumption of ultra-processed foods with health problems. Yet researchers are still investigating the reasons behind those associations. Diet quality, overall eating patterns and other factors can complicate efforts to establish cause and effect.

The TOR proposal concerns the regulatory treatment of certain substances. It does not establish that all ultra-processed foods contain dangerous chemicals or that the proposed exemption would apply to every ingredient in those products.

For consumers, the more useful question is specific: What is the substance, how is it used, how much exposure is expected, and what evidence supports its safety?

What Scientists and Consumer Advocates Want Answered

The proposal raises several questions about how the expanded TOR process would work in practice. One is how the FDA would assess exposure across different groups of people, including those who may consume more of a particular food than the average person.

The FDA says its proposed approach would update exposure calculations to account for differences in body weight and total dietary consumption. It proposes a daily exposure benchmark intended to provide an equivalent level of protection across population groups.

Another question concerns public access to evidence. Clear explanations of the data, assumptions and conditions behind an exemption can help outside researchers evaluate a decision.

People may also ask how the agency would respond if new research identified a potential risk after an exemption was granted. The FDA has legal authority to take action when available information indicates a food-safety problem. The practical effectiveness of oversight, however, depends on the evidence available and how the agency responds.

These are questions for regulatory review, not proof that the proposed system would necessarily fail. The final outcome will depend on the agency’s response to public comments and the rule’s final language.

What Could the Proposal Mean for Consumers?

For now, the proposal does not change the regulatory status of every ingredient in grocery stores. It also does not establish that a particular packaged food is unsafe.

Consumers do not need to avoid all ultra-processed foods because of this proposal. Instead, they can read ingredient labels, follow credible public-health updates and look for reliable evidence about specific substances when concerns arise.

It is also useful to understand how different FDA decisions work. For example, another recent FDA regulatory dispute involves a different legal and medical issue. It should not be treated as equivalent to food-additive regulation, but it illustrates why the precise scope of an agency decision matters.

Likewise, the FDA’s approval of a new pancreatic cancer treatment involves a different regulatory pathway from food ingredients. Drug approval standards and food-additive requirements are not interchangeable.

What Happens Next With the FDA Proposal?

The proposed rule was published in the Federal Register on August 11, 2026. As of October 13, it remains open for public comment, with a deadline of December 9, 2026.

The FDA will need to consider comments before deciding whether to revise, finalize or otherwise change the proposal. The agency has not established a final implementation date in the proposed rule.

Consumers, researchers, food manufacturers and public-health organizations can use the comment period to address the evidence requirements, exposure calculations, transparency and oversight provisions. Their input may help shape the final policy.

The most important point is that the proposal must be judged by its actual language. The TOR expansion could broaden the range of substances eligible for an exemption, but eligibility would still depend on the stated criteria and supporting information.

Food safety depends on credible evidence, careful exposure assessment and clear public oversight. As the FDA considers changes to its rules, transparency will be essential to public confidence. The final decision—not the proposal alone—will determine how the regulatory framework changes.

By Emily Carter | Health & Science Correspondent