GRAS Conclusions and Notices Readiness for Ingredient and Supplement Teams
Hold every GRAS conclusion to the same scientific standard, know what a notice discloses and ask the NDI question separately.
In Short
- Same science either way.
- FDA letter within 180 days of filing.
- GRAS is not an NDI answer.
The Dietary Supplement Operations Guide
What the label says. What the batch proves.
- The rules and who decides
- Specification to finished batch
- Test, review, investigate
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The Dietary Supplement Operations Guide
What the label says. What the batch proves.
Under 21 CFR 170.30, a substance is GRAS only if qualified experts generally recognise it as safe under its intended conditions of use. Part 170 Subpart E lets any person tell FDA about such a conclusion through a GRAS notice. For dietary supplements, a GRAS conclusion does not by itself settle whether a new dietary ingredient notification is needed. Orientation, not legal advice. Sources checked 4 Oct 2026.
What a GRAS conclusion requires
Section 170.30(a) says general recognition of safety rests only on the views of experts qualified by training and experience, based on scientific procedures or, for substances used in food before 1 January 1958, on common use in food. It requires common knowledge in the relevant scientific community that there is reasonable certainty of no harm under the intended conditions of use.
More on what a GRAS conclusion requires
Under 170.30(b), scientific procedures need the same quantity and quality of evidence as a food additive approval, ordinarily based on published data and corroborated, if wanted, by unpublished data.
Self-Affirmed and Notified Conclusions
Section 170.205 provides that any person may notify FDA of a conclusion that a substance is GRAS under its intended use. As currently codified, the notice is something a company may file, which is why some conclusions are made without one, often called self-affirmed.
Self-Affirmed vs Notified
| Self-affirmed | Notified | |
|---|---|---|
| Scientific standard (170.30) | Same | Same |
| FDA evaluation | None | Response letter |
| Public disclosure | Not filed with FDA | Disclosable under 170.275 |
- Scientific standard (170.30)
- Self-affirmed
- Same
- Notified
- Same
- FDA evaluation
- Self-affirmed
- None
- Notified
- Response letter
- Public disclosure
- Self-affirmed
- Not filed with FDA
- Notified
- Disclosable under 170.275
More on self-Affirmed and Notified Conclusions
The scientific standard in 170.30 is the same either way; the difference is whether FDA has evaluated the notice and responded. Check for any FDA rulemaking on GRAS made after 1 October 2026 before relying on this.
What a notice contains and how FDA responds
Part 1 of a GRAS notice must be dated and signed by a responsible official, attorney or agent, contain no confidential information except as 170.225(c)(8) allows, and describe the intended conditions of use, including the foods, levels and purposes. Under 170.265, FDA decides whether to file the submission and writes to say so, then responds by letter within 180 days of filing, which it may extend by 90 days.
More on what a notice contains and how FDA responds
Under 170.275, the notice's data and information are available for public disclosure under Part 20.
Supplements and New Dietary Ingredients
Supplements raise a separate question. Under 21 U.S.C.
More on supplements and New Dietary Ingredients
350b(a), a supplement containing a new dietary ingredient is adulterated unless one of the statutory conditions is met. Section 190.6(a) requires a notification at least 75 days before marketing for a new dietary ingredient that has not been present in the food supply as an article used for food in a form in which the food has not been chemically altered. A GRAS conclusion for conventional food use does not by itself answer that question; get regulatory advice for each ingredient and form.
The File Behind the Conclusion
Whether or not a notice is filed, the conclusion is only as strong as its file: identity and specifications, manufacturing method, intended uses and levels, estimated intake, the safety data and literature relied on, the experts' views and the date of the conclusion. Version the file and link it to the ingredient specification and supplier approvals, so a change in source, process or use level reopens the review.
Worked Example: Ingredient File ING-552
More on the File Behind the Conclusion
Qualified people reach and sign the conclusion; a database of documents does not.
Questions
Is a GRAS notice mandatory?
As currently codified, 170.205 says a person may notify FDA. The scientific standard in 170.30 applies whether or not a notice is filed.
How long does FDA take?
FDA responds by letter within 180 days of filing a notice and may extend that by 90 days (170.265(b)).
Is a filed GRAS notice confidential?
No. Under 170.275 its data and information are available for public disclosure under Part 20. Keep confidential information out of Part 1 (170.225(b)).
Does GRAS status mean no NDI notification is needed?
Not by itself. Whether a supplement ingredient needs notification under 21 U.S.C. 350b and 21 CFR 190.6 is a separate question.
Practical orientation, not legal advice. Rules differ by jurisdiction; your quality and compliance team decides what applies.
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