New Dietary Ingredient (NDI) notifications: when the FDA needs to hear from you

Most US dietary supplements never need FDA clearance before launch — but there's one big exception that catches manufacturers out: the New Dietary Ingredient. If your formula contains an ingredient that wasn't marketed in the US before October 15, 1994, you may owe the FDA a notification before you sell. Getting this wrong is one of the fastest routes to an FDA warning letter.

What counts as an NDI

Under DSHEA, a New Dietary Ingredient is a dietary ingredient that was not marketed in the United States before October 15, 1994. The cut-off date is the whole game: an ingredient with a documented history of use in the US food or supplement supply before that date is 'grandfathered' and generally needs no notification, while a genuinely new ingredient — a novel botanical extract, a new synthetic form, a newly isolated compound — may trigger the requirement.

The 75-day notification

When an NDI notification is required, the manufacturer or distributor must submit it to the FDA at least 75 days before introducing the product to market. The notification has to include the identity of the ingredient, the conditions of use, and the basis for concluding the ingredient is reasonably expected to be safe. It is a safety notification, not an approval: the FDA reviews it but does not 'approve' the ingredient.

Chemical alteration and old ingredients

A common trap is assuming a pre-1994 ingredient is always exempt. If a grandfathered ingredient has been 'chemically altered' — through a new manufacturing process, a different extraction solvent, or a change that alters its composition — the FDA may treat the result as a new ingredient needing notification. The processing history matters as much as the botanical name.

Why the paper trail decides it

Whether an ingredient is grandfathered or new often comes down to evidence: can you document its pre-1994 US marketing, or its identity and safety basis if it's new? Manufacturers who keep ingredient dossiers — identity, source, processing, history of use — are the ones who can answer an FDA question quickly. Those relying on a supplier's say-so are exposed.

This is general information, not regulatory or legal advice. US requirements change and turn on specifics, so confirm the current rules with the FDA, FTC, or a qualified US regulatory expert before relying on them.

Where Lemoniq fits

Lemoniq holds each product as one structured formula — ingredients, amounts, specifications, sourcing, and the documentation behind them — and generates what a US dietary supplement needs from that single source: the Supplement Facts panel, the claim and disclaimer wording, the records that cGMP expects, and the data to back overages, dating, and origin. Compliance becomes a property of the formula, not a pile of separate documents.

The takeaway

The US supplement model trades pre-market approval for full manufacturer responsibility, which means the work shifts onto documentation, accurate labeling, and defensible formulas. The brands that scale in the US are the ones whose single source-of-truth formula generates each label, specification, and record correctly — every time, across every product.

Lemoniq turns one formula into compliant, US-ready outputs — panel, claims, specs, and documentation — from a single source. We solve this exact problem. See how it works