New Dietary Ingredient (NDI) Consulting & NDIN Strategy

Regulatory strategy, safety validation, and expert-led NDIN submissions for novel dietary ingredients.

dicentra supports companies in navigating the New Dietary Ingredient (NDI) pathway—from early classification through gap analysis, data development, and FDA notification. Our team delivers NDIN strategies that align with FDA expectations, reduce regulatory risk, and support successful commercialization of dietary ingredients in the U.S. market.
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Understanding the NDI Pathway

A New Dietary Ingredient (NDI) is defined as a dietary ingredient that was not marketed in the United States before October 15, 1994.

To legally market an NDI in a dietary supplement, companies must submit a New Dietary Ingredient Notification (NDIN) to the FDA at least 75 days before commercialization.

The NDIN must demonstrate that the ingredient is reasonably expected to be safe under its intended conditions of use. This requires a comprehensive evaluation of safety data, including toxicology, historical use, and exposure.

NDI Is a High-Risk Regulatory Decision

NDI classification is one of the most critical steps in dietary supplement development. Misclassification or insufficient safety data can result in:

  • FDA enforcement actions or warning letters
  • Product recalls or market withdrawal
  • Delays in commercialization
  • Loss of investor or partner confidence

In many cases, the challenge is not just preparing the NDIN—it is determining whether the NDI pathway is appropriate at all.

dicentra works with clients early to assess regulatory eligibility, evaluate alternative pathways, and build a strategy that supports both compliance and commercial success.

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NDI Consulting & NDIN Capabilities

  • Regulatory eligibility and pathway assessment
  • Scientific literature review and safety evaluation
  • Gap analysis and data development strategy
  • Toxicology study recommendations and coordination
  • NDIN dossier preparation (21 CFR 190.6 compliant)
  • FDA pre-submission meeting preparation (if applicable)
  • NDIN submission and agency correspondence

Our Approach to NDIN Submissions

dicentra follows a structured, phase-based approach to NDIN development:

  • Gap Analysis: Evaluate identity, manufacturing, and safety data
  • Literature Review: Build a robust scientific safety narrative
  • Data Development: Coordinate toxicology or analytical studies if required
  • Notification Preparation: Develop a complete FDA-ready NDIN dossier
  • FDA Submission & Follow-Up: Manage submission and regulatory correspondence

This approach ensures that NDIN submissions are scientifically sound, regulator-ready, and aligned with FDA expectations.

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Why Companies Choose dicentra for NDI Consulting

  • Deep experience with NDIN submissions and FDA expectations
  • Integrated regulatory, toxicology, and CRO expertise
  • Proven track record with novel ingredient evaluations
  • In-house scientific and regulatory team (no outsourcing)
  • Strategic guidance on pathway selection and risk mitigation
  • Support beyond submission, including data development and commercialization alignment

Related Services

dicentra supports complementary regulatory and scientific services to ensure compliant and successful market entry for dietary ingredients.

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Related Insights on NDI & Regulatory Strategy

Ready to Bring Your Dietary Ingredient to Market?

Whether you’re determining if your ingredient qualifies as an NDI, preparing a notification, or addressing FDA expectations, dicentra delivers regulatory strategies designed to support safe, compliant, and commercially viable product launches.

Schedule a discovery call to explore how our team can support your NDIN program.

Frequently Asked Questions

What is a New Dietary Ingredient (NDI)?

A New Dietary Ingredient (NDI) is a dietary ingredient that was not marketed in the United States before October 15, 1994. These ingredients require regulatory evaluation before being used in dietary supplements.

What is an NDIN and when is it required?

A New Dietary Ingredient Notification (NDIN) is a submission to the FDA required for NDIs. It must be submitted at least 75 days before the ingredient is introduced into the market.

What happens if I don’t submit an NDIN?

Failure to submit an NDIN when required may result in the product being considered adulterated. This can lead to FDA enforcement actions, including warning letters, product recalls, or removal from the market.

How do I know if my ingredient qualifies as an NDI?

Determining NDI status requires assessing whether the ingredient was marketed before October 15, 1994, and evaluating its intended use. Misclassification is a common risk and should be assessed early in development.

How long does an NDIN process take?

Preparation timelines vary depending on available data. Once submitted, the FDA review period is typically 75 days, although preparation and data development may take several months.

What data is required for an NDIN?

An NDIN requires:

  • Ingredient identity and composition
  • Manufacturing process
  • Intended use and dosage
  • Safety and toxicological data
  • Scientific evidence supporting safe use

The level of evidence depends on the novelty of the ingredient.

What if my ingredient is not an NDI?

If your ingredient does not qualify as an NDI, it may fall under other pathways such as GRAS, Old Dietary Ingredient (ODI), or food additive regulations. Selecting the correct pathway is critical to avoid compliance risks.

Can dicentra support both NDI and GRAS strategies?

Yes. dicentra evaluates all potential regulatory pathways, including NDI, GRAS, and food additive options, to determine the most appropriate strategy for your ingredient and commercial goals.