Does the proposed rule apply to dietary supplements?

The source text does not mention dietary supplements specifically. It applies to human and animal food substances, which includes ingredients. Since dietary supplement ingredients are food substances under the FD&C Act, the rule would likely apply to supplement brand owners who rely on GRAS conclusions for their ingredients.

When would compliance be required?

The source text provided does not include the specific effective or compliance dates FDA is proposing. The notice states that proposed effective and compliance dates are discussed in a separate section of the Federal Register document. Comments on the proposal itself are due December 9, 2026.

If my ingredient already has a 'no questions' letter from FDA, is a new notice required?

The proposed rule does not state how existing FDA responses to voluntary GRAS notices would be treated under a mandatory program. The text provided does not address whether a prior 'no questions' letter would satisfy a new mandatory requirement, and we suggest monitoring the final rule for this detail.

Is there an exception for ingredients already on the market?

The proposal includes a time-limited option to make a streamlined submission to FDA for certain intended uses of substances already in interstate commerce, instead of initially submitting a full GRAS notice. This applies to substances introduced under the GRAS provision before the effective date of a final rule. The window duration is not specified in the provided text.

Should I stop selling a product while the comment period is open?

No. The proposed rule is not yet final. Current regulations remain in effect, and the voluntary GRAS notification program continues to operate. The proposal itself states that no person is currently required to wait for an FDA response before introducing a substance. We suggest reviewing your documentation while monitoring the rulemaking.

Regulatory updateWatchFederal Register

What FDA's proposed mandatory GRAS notices mean for supplement brands

By Jake, founder · Published 2026-08-17 · Source dated 2026-08-11

FDA has proposed a rule that, if finalized, would require the submission of GRAS notices for the use of a human or animal food substance purported to be GRAS, unless an exception applies. Published August 11, 2026, comments on the proposal are due by December 9, 2026.

What is the proposed rule?

The FDA is proposing to amend its regulations to require the submission of GRAS notices for the use of a human or animal food substance that is purported to be GRAS under the conditions of its intended use under the Federal Food, Drug, and Cosmetic Act.

The proposed rule, if finalized, would convert the current voluntary GRAS notification program into a mandatory one. It would require any person introducing a substance into interstate commerce under the GRAS provision to notify FDA of the basis for their conclusion that the substance is GRAS under the conditions of its intended use.

The proposal was published in the Federal Register on August 11, 2026. Comments on the proposed rule must be received by December 9, 2026.

What does the text NOT say about supplement ingredients?

The source text does not use the word "supplement" or "dietary supplement." It discusses food substances broadly, including ingredients and substances added indirectly, such as from food packaging.

The proposal does not state that ingredients subject to an existing food additive regulation are exempt from the mandatory GRAS notice requirement. FDA's discussion of exceptions in the source text covers a time-limited option for certain substances already in interstate commerce, and does not list a general exception for substances covered by a food additive regulation.

The text does not say the proposed rule would create a requirement that a notifier wait for an FDA response before marketing the substance. The source text states that under the current voluntary program, "there is no requirement that a notifier must wait to receive a response from FDA" before introducing the substance. The proposal does not discuss waiting for a response before marketing.

What would change for a brand owner who uses GRAS ingredients?

The primary change, if the rule is finalized, would be that a GRAS notice would be mandatory rather than voluntary for certain uses of substances in human and animal food. A brand owner that introduces a substance into interstate commerce under the GRAS provision would need to notify FDA of the basis for their GRAS conclusion.

FDA states that this change would provide greater transparency about substances added to food, enabling the agency to more quickly determine if a use constitutes a food additive use subject to premarket review and approval. It would also help FDA identify potentially unsafe substances.

The proposed rule states that if the notification requirement is not met for a substance's conditions of intended use, FDA would consider such noncompliance as a factor in its prioritization of food substances for post-market review.

Which exceptions does the proposal mention?

The proposed rule, as described in the source text, would establish certain exceptions to the requirement to submit a GRAS notice. The text specifically mentions a time-limited option to make a streamlined submission to FDA for certain intended uses of substances already in interstate commerce, instead of initially submitting a GRAS notice.

The structure described is a time-limited option available for substances introduced into interstate commerce under the GRAS provision before the effective date of a final rule, for firms that choose to submit this information during the window of availability. The source text does not detail other specific exceptions.

Under the current voluntary GRAS notification program, we suggest reviewing whether your ingredients already have an FDA "no questions" letter. The proposed rule does not state how existing FDA responses to voluntary GRAS notices would be treated under a mandatory program.

What are the timelines?

Comments on the proposal are due by December 9, 2026. This is not the compliance date. The proposal itself states that the effective and compliance dates are discussed in a separate section of the Federal Register notice, and the source text provided does not include the specific dates FDA is proposing for compliance.

The source text mentions a time-limited option for certain substances already in interstate commerce before the effective date of a final rule. No duration for that window is specified in the text provided.

Compliant Always recommends that brand owners who rely on independent GRAS conclusions request the underlying GRAS documentation from their ingredient suppliers now. If the rule is finalized, the documentation supporting a GRAS conclusion would need to be submitted to FDA, and gaps in that documentation may surface.

How could this affect what a document reviewer looks for?

FDA states that mandatory submission of GRAS notices would help ensure that GRAS conclusions have a scientific basis and are appropriately documented. A reviewer, whether at a retailer or a platform, might look for whether a GRAS notice was submitted and whether FDA issued a "no questions" letter for the specific conditions of intended use.

A retailer's supplement compliance questionnaire might ask whether each ingredient's use has been the subject of a GRAS notice and what FDA's response was. The proposed rule, if finalized, would make public disclosure of GRAS notices part of the process. Section 170.275 of the proposal covers public disclosure of a GRAS notice.

Compliant Always would suggest that brand owners catalog every ingredient that relies on a GRAS determination, identify who holds the GRAS conclusion, and confirm whether a GRAS notice was submitted and what FDA's response was. If a notice was not submitted, consider asking your ingredient supplier about their plan in light of this proposed rule.

What should a brand do right now?

Comments on the proposal are due December 9, 2026. If the rule would affect your supply chain or product formulations, consider submitting a comment to the docket (FDA-2025-N-3262) through regulations.gov.

A sensible step is to map every ingredient in your products that is not an approved food additive and not covered by an FDA "no questions" letter. Determine whether the ingredient's use is supported by a GRAS conclusion, and ask the party that made that conclusion to share the scientific basis for it.

The source text notes that as of January 2011, an estimated 1,000 human food substances had firms claiming independent conclusions of GRAS status without submitting a GRAS notice. Some supplement ingredients may fall into that category. Compliant Always suggests starting conversations with your contract manufacturer and ingredient suppliers about documentation readiness.

Frequently asked questions

Does the proposed rule apply to dietary supplements?: The source text does not mention dietary supplements specifically. It applies to human and animal food substances, which includes ingredients. Since dietary supplement ingredients are food substances under the FD&C Act, the rule would likely apply to supplement brand owners who rely on GRAS conclusions for their ingredients.
When would compliance be required?: The source text provided does not include the specific effective or compliance dates FDA is proposing. The notice states that proposed effective and compliance dates are discussed in a separate section of the Federal Register document. Comments on the proposal itself are due December 9, 2026.
If my ingredient already has a 'no questions' letter from FDA, is a new notice required?: The proposed rule does not state how existing FDA responses to voluntary GRAS notices would be treated under a mandatory program. The text provided does not address whether a prior 'no questions' letter would satisfy a new mandatory requirement, and we suggest monitoring the final rule for this detail.
What happens if a GRAS notice is not submitted?: FDA states in the proposed rule that if the notification requirement is not met for a substance's conditions of intended use, FDA would consider such noncompliance as a factor in its prioritization of food substances for post-market review. The text does not describe specific enforcement consequences beyond that.
Is there an exception for ingredients already on the market?: The proposal includes a time-limited option to make a streamlined submission to FDA for certain intended uses of substances already in interstate commerce, instead of initially submitting a full GRAS notice. This applies to substances introduced under the GRAS provision before the effective date of a final rule. The window duration is not specified in the provided text.
Should I stop selling a product while the comment period is open?: No. The proposed rule is not yet final. Current regulations remain in effect, and the voluntary GRAS notification program continues to operate. The proposal itself states that no person is currently required to wait for an FDA response before introducing a substance. We suggest reviewing your documentation while monitoring the rulemaking.

Sources

Federal Register — Substances Generally Recognized as Safe accessed 2026-08-17

Written from the source text above and checked against it before publishing: every date, figure and section cited appears in the source. Information, not legal advice.