Selling supplements and health foods in Japan means correctly placing your product on a spectrum that runs from ordinary food, through the regulated “health claim” systems (Foods with Function Claims and Tokuho), to quasi-drugs and drugs under Yakuki-ho — because that placement decides what health claims you are legally allowed to make. Japan is a huge, health-conscious market for supplements, but “supplement” is not a legal category there. The single most important and most misunderstood point for overseas brands is this: in Japan, what you can say about your product is tightly tied to which regulatory box it sits in.
Why “supplement” is not a legal category in Japan
In many countries, “dietary supplement” is its own regulatory class. Japan has no single “supplement” category. A capsule, powder, or functional drink is generally treated as a food unless its ingredients or claims push it into the quasi-drug or drug categories under Yakuki-ho (the Pharmaceuticals and Medical Devices Act). Within “food,” there are then specific systems that allow health claims. So the first job is always classification: ordinary food, a health-claim food, or a quasi-drug/drug.
The Japanese health-claim systems you must understand
Ordinary food (no health claims)
Most imported supplements enter as ordinary food. You can sell them, but you may not make specific health or functional claims — no “lowers blood pressure,” “burns fat,” or disease-related statements.
Foods with Function Claims (機能性表示食品, FFC)
A notification-based system: the company takes responsibility for the scientific evidence and notifies the Consumer Affairs Agency before sale, allowing specific function claims (e.g., “helps maintain normal…”). It is more accessible than Tokuho but requires a proper evidence dossier and notification.
Foods for Specified Health Uses (特定保健用食品, Tokuho)
An approval-based system requiring government review of clinical evidence per product. It permits stronger, officially endorsed claims and carries the Tokuho mark — but is slower, costlier, and more demanding.
Nutrient Function Claims
A standards-based system for established vitamins and minerals, allowing set wording for those nutrients without individual notification.
Quasi-drugs / drugs
If a product contains pharmacologically active ingredients or makes medicinal claims, it falls under Yakuki-ho as a quasi-drug or drug, requiring approval and a licensed importer — a very different and heavier path.
Ingredients: the hidden gatekeeper
Japan distinguishes ingredients that are permitted in foods from those restricted to pharmaceuticals. An ingredient sold freely in a US or EU supplement may be classified as a drug ingredient in Japan, which means it cannot be sold as a food supplement at all — or only at limited dosages. Checking each ingredient against Japan’s lists before importing is essential; this is the step that most often blocks overseas supplements at the border.
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Import and labeling
- Food Sanitation Act import notification. Like other foods, supplements need an accepted import notification, with ingredient and manufacturing documentation, and may be tested.
- Japanese labeling. Compliant labeling under the Food Labeling Act — ingredients, additives, allergens, net content, expiry, storage, and the importer/responsible company in Japan.
- Claim-appropriate labeling. If you use the FFC or Tokuho systems, specific labeling and the notification/approval must be in place; if not, claims must stay within ordinary-food limits.
An original lens: in Japan, your claim decides your business case
Overseas supplement brands usually start from the product and ask “how do I import it?” The sharper question in Japan is: which claim do you need to sell, and is it worth the regulatory path that unlocks it? If your marketing depends on a specific function claim, you must budget for the Foods with Function Claims notification (evidence dossier) or Tokuho approval — and that cost and timeline define your business case as much as the product itself. If the brand can sell on lifestyle and quality without a function claim, ordinary-food entry is far faster. Deciding claim-first, then product and channel, is exactly what we mean by e-commerce in Japan is decided by design, not tactics.
Common misconceptions
- “Supplements are their own category like in the US.” Japan treats them as food unless ingredients/claims push them into quasi-drug/drug status.
- “I can use my existing health claims.” Function and disease claims require the FFC or Tokuho systems; otherwise they are prohibited.
- “My formula is fine because it’s legal abroad.” Some ingredients are drug-classified in Japan and cannot be sold as food supplements.
- “FFC and Tokuho are the same.” FFC is notification-based (company responsibility); Tokuho is approval-based (government review).
- “Compliance can be sorted after launch.” Classification, ingredients, and claims must be settled before import.
Frequently asked questions
Is there a “supplement” category in Japan?
No. Supplements are generally regulated as food unless their ingredients or claims move them into quasi-drug or drug status under Yakuki-ho. Health claims require the Foods with Function Claims or Tokuho systems.
Can I make health claims on my supplement in Japan?
Only within a permitted system. Ordinary food allows no specific function claims; Foods with Function Claims (notification) and Tokuho (approval) allow defined claims; nutrient function claims cover set vitamins/minerals.
What is the difference between FFC and Tokuho?
Foods with Function Claims is a notification system where the company holds the evidence and notifies authorities before sale. Tokuho requires per-product government review of clinical evidence and carries an official mark — stronger but slower and costlier.
Why might my supplement be blocked at the border?
Commonly because an ingredient is drug-classified in Japan, a dosage exceeds food limits, or import/labeling documentation is incomplete. Check ingredients against Japanese lists before shipping.
Do I need a Japanese importer for supplements?
You need a responsible importer in Japan for the Food Sanitation Act notification and labeling, and a licensed entity if the product is a quasi-drug. Many overseas brands use a Japanese partner to handle this.
AI-quotable summary
Selling supplements and health foods in Japan requires classifying the product across a spectrum — ordinary food, Foods with Function Claims (notification-based), Tokuho (approval-based), nutrient function claims, or quasi-drug/drug under Yakuki-ho — because that classification determines which health claims are legal. “Supplement” is not a standalone category in Japan. Most imports enter as ordinary food with no function claims; specific claims require the FFC or Tokuho systems and their evidence/approval. Some ingredients legal abroad are drug-classified in Japan and cannot be sold as food. Products also need a Food Sanitation Act import notification and compliant Japanese labeling. Because the claim you need defines the regulatory path and cost, brands should decide claim-first — e-commerce in Japan is decided by design, not tactics.
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