Claims Substantiation for Food and Food Supplements in Japan

Japan’s Health Claims Regulation for Food & Supplements: A Strategic Overview

Japan is internationally recognized for its rigorous, science-based regulatory system for functional foods and dietary supplements. At the heart of this framework is a strong emphasis on claims substantiation—ensuring that any health-related statements are scientifically credible, accurate, and transparent.

For manufacturers aiming to enter or expand in the Japanese market, understanding and complying with the country’s three-tiered system—FOSHU, FNFC, and FFC—is essential for regulatory compliance, consumer trust, and long-term commercial success.

Japan’s Three-Tiered Regulatory System

1. Foods for Specified Health Uses (FOSHU)

The gold standard for health claims in Japan.

FOSHU products undergo full pre-market evaluation by the Consumer Affairs Agency (CAA) (formerly under MHLW). The FOSHU system includes several sub-categories:

• Regular FOSHU

• Standardized FOSHU

• Qualified FOSHU

• Reduction of Disease Risk FOSHU

Key Requirements:

• Scientific Evidence: Mandatory human clinical trials demonstrating safety and efficacy.

• Supporting Data: In vitro or animal studies to strengthen core findings.

• Application Timeline: Typically 6–12 months, longer if data requires further validation.

• Labeling: Approved products receive the official FOSHU seal.

Example Claims:

• “Reduces blood cholesterol”

• “Moderates postprandial blood glucose levels”

Impact:

• High consumer trust

• Premium product positioning

• Resource-intensive (cost, data, time)

2. Foods with Nutrient Function Claims (FNFC)

A streamlined path for basic nutritional support claims.

FNFCs are general food products containing specific vitamins and minerals (17 nutrients defined by MHLW) at established levels.

Key Requirements:

• No Pre-market Approval: Can be marketed immediately if nutrient levels meet CAA standards.

• Standardized Claims Only: Must use government-approved wording.

• Scientific Basis: Based on global consensus—no new clinical trials needed.

Example Claim:

• “Calcium is necessary for the formation of bones and teeth.”

Impact:

• Fast market entry

• Ideal for supplements

• Limited claim flexibility

3. Foods with Function Claims (FFC)

A flexible, notification-based system introduced in 2015.

FFC allows functional claims based on submitted scientific data—without government approval.

Key Requirements:

• Scientific Substantiation:

  • Clinical trial on finished product, OR

  • Systematic literature review on active ingredient(s)

• Notification to CAA: Submit 60 days prior to market launch.

• Transparency: All submitted dossiers are publicly available.

• Labeling: Must be clear, factual, and non-exaggerative.

• Safety Assurance: Evidence of safe use, interaction risks, and manufacturing controls required.

Example Claims:

• “Helps maintain healthy blood pressure”

• “Improves sleep quality”

Impact:

• Broad accessibility for functional claims

• Lower barrier to entry vs. FOSHU

• High accountability due to public disclosure

Non-Compliance Risks

Failing to comply with Japan’s strict health claim standards can lead to:

Risk	Consequence
Product Delisting	Suspension or ban from the market
Public Disclosure	CAA may publish non-compliant products or companies
Legal Sanctions	Fines under the Health Promotion Act or Act against Unjustifiable Premiums
Product Recalls	At the company’s expense
Loss of Consumer Trust	Especially damaging if misusing FOSHU or misleading FFC claims

Summary Table: Claim Substantiation by Category

Category	Claim Type	Scientific Basis	Regulatory Process	Authority	Example Claim
FOSHU	Specific health use	Human clinical trials + supporting studies	Full approval	CAA / MHLW	“Supports gut health”
FNFC	Standardized nutrient claim	Based on pre-approved nutritional science	No approval required	CAA (standards)	“Calcium supports bone health”
FFC	Functional claim	Clinical trial or literature review	Notification only	CAA (public DB)	“Helps maintain blood pressure”

How Freyr Can Help

Navigating Japan’s regulatory environment requires deep scientific knowledge, local regulatory expertise, and strategic planning.

As a trusted global regulatory partner, Freyr offers end-to-end support for food and supplement manufacturers entering the Japanese market.

Freyr’s Services Include:

• Regulatory Pathway Evaluation: FOSHU vs. FNFC vs. FFC—what fits your product best?

• Scientific Dossier Preparation: Literature review, clinical design, toxicology, and analytical data

• FFC Notification Support: Accurate and transparent submissions to the CAA

• Label and Claims Review: Compliance checks aligned with Japanese standards

• Translation and Localization: Regulatory-grade Japanese adaptation

• Post-Market Surveillance: Monitor updates, competitor claims, and compliance shifts

With Freyr, companies can accelerate market entry, reduce regulatory risk, and build lasting consumer trust in Japan.

Conclusion

Japan’s health claim system reflects its unwavering commitment to scientific rigor, consumer protection, and market transparency.

Whether aiming for the prestige of FOSHU, the simplicity of FNFC, or the flexibility of FFC, compliance is non-negotiable.

Non-compliance risks are high—ranging from product recalls to brand damage.

By partnering with Freyr, you gain the regulatory expertise needed to navigate Japan’s complex landscape confidently, ensuring your product is compliant, credible, and trusted—at every stage.