Lactic Acid Bacteria / Probiotics: Ingredient Quantity Labeling Standards and Cross-Border Compliance Guide

---

Abstract

The global market circulation of lactic acid bacteria and probiotic health food products continues to expand, and the compliance challenges consumers face when making cross-border purchases are growing in tandem. This paper systematically reviews current rules across three dimensions: ingredient quantity labeling standards, Japan's domestic labeling regulatory framework, and cross-border purchase compliance considerations, with the aim of helping consumers and procurement parties establish verifiable standards for evaluating product information. The content of this paper is strictly limited to objective dimensions such as labeling, testing, raw material origin, and traceability, and does not involve any claims regarding medical efficacy.

---

I. Basic Definitions and Product Classification

Lactic Acid Bacteria (LAB) is a collective term for microorganisms capable of fermenting sugars to produce lactic acid, encompassing multiple genus-level classifications including *Lactobacillus*, *Bifidobacterium*, *Streptococcus*, and others. Probiotics is a functional concept jointly defined in 2001 by the Food and Agriculture Organization of the United Nations (FAO) and the World Health Organization (WHO) as "live microorganisms which, when administered in adequate amounts, confer a health benefit on the host." This definition is itself a scientific classification statement, not a product efficacy claim.

In the market, lactic acid bacteria products are primarily divided into the following three regulatory tiers:

• General Foods: No functional claims permitted; only ingredient names and quantities may be labeled. Subject to the basic labeling requirements of the *Food Labeling Act* (*Shokuhin Hyōji Kijun*).
• Foods with Function Claims (*Kinōsei Hyōji Shokuhin*): A system implemented in 2015 under which businesses must submit scientific evidence documentation to the Consumer Affairs Agency (CAA) and complete a notification filing before using approved functional claim language on packaging. Unlike FOSHU (Foods for Specified Health Uses), this system operates on a notification basis rather than individual approval.
• Foods for Specified Health Uses (FOSHU / *Tokutei Hoken Yō Shokuhin*): Requires individual approval from the Consumer Affairs Agency; the approval number must be displayed on the packaging. This is the most strictly regulated category of health foods in Japan.

Identifying which regulatory category a product belongs to is the first step in interpreting its label information.

---

II. Ingredient Quantity Labeling Standards: Interpretation of Key Indicators

2.1 Strain-Level Identification

Internationally recognized best practices for probiotic labeling (with reference to FAO/WHO guidelines and ISAPP — the International Scientific Association for Probiotics and Prebiotics — position statements) require labeling to the precise strain level, not merely to the genus or species name. For example:

• Insufficient labeling: *Bifidobacterium*
• Sufficient labeling: *Bifidobacterium longum* BB536 (the commercial designation BB536 is a strain registered by Meiji Company; cited here as a formatting example only)

The importance of strain-level identification lies in the fact that biological characteristics differ significantly between strains. Consumers and researchers need strain information to consult the corresponding publicly available literature and safety data — this is a fundamental requirement of information transparency.

2.2 Colony Count (CFU) Labeling Methods

Viable cell counts are typically expressed in CFU (Colony Forming Units). Labels should be examined carefully for the following distinction between two different labeling time points:

Japan's *Foods with Function Claims* notification rules, as well as the voluntary standards of industry organizations such as JHNFA (Japan Health and Nutrition Food Association), encourage businesses to label guaranteed viable cell counts at end of shelf life, to ensure that the information provided to consumers corresponds to the actual condition of the product at the time of consumption.

2.3 Viability Assurance Conditions

Viable cell counts are closely tied to storage conditions. Compliant labels should clearly state the storage temperature requirements corresponding to the guaranteed viable cell count (e.g., refrigeration required, stable at room temperature, protect from light, etc.) as well as the period of use after opening. If labels do not disclose this information, consumers have no way of determining whether the product they purchased maintained its labeled viable cell count under the prescribed conditions.

2.4 Quantity Labeling for Other Ingredients

In addition to colony counts, lactic acid bacteria products frequently contain auxiliary ingredients such as prebiotics (e.g., inulin, oligosaccharides), vitamins, and minerals. Under Japan's *Food Labeling Act* and *Nutrition Labeling Standards*, the nutrition facts panel must, in the prescribed format, declare mandatory items including energy, protein, fat, carbohydrates, and sodium. Other ingredients may be voluntarily declared according to product characteristics, but declared values must be supported by analytical evidence and may not be falsely stated.

---

III. Japan's Domestic Labeling Compliance Framework

3.1 Principal Regulatory System

Health food labeling in Japan is subject to the overlapping jurisdiction of multiple laws and regulations:

• The *Food Labeling Act* (*Shokuhin Hyōji Hō*, effective 2015): Consolidated the food labeling provisions previously dispersed across the *JAS Act*, the *Food Sanitation Act*, and the *Health Promotion Act* into a single, unified framework; it is the most central labeling regulation currently in force. Violations may result in administrative sanctions and fines.
• The *Health Promotion Act* (*Kenkō Zōshin Hō*): Prohibits making exaggerated health effect representations regarding food, and stipulates that "*ichijirushiku jijitsu ni sōi suru hyōji*" (representations that deviate materially from the facts) constitute illegal conduct.
• The *Act against Unjustifiable Premiums and Misleading Representations* (*Keihinhyōji Hō*): Administered by the Consumer Affairs Agency; directed at "*yūryō gonintan hyōji*" (misleading superiority representations) — i.e., representations that cause consumers to believe a product's quality is superior to its actual quality — and empowers the CAA to issue cease-and-desist orders and impose surcharges.

3.2 GMP Certification and Manufacturing Traceability

The manufacturing quality of a product forms the foundation of label credibility. At the industry level in Japan, JHNFA operates a GMP Conformity Certification program, under which factories applying for certification undergo third-party audits covering raw material management, manufacturing processes, quality inspection, and shipment management. Factories that pass certification are issued a certification number and are subject to periodic review audits and spot inspections.

Consumers may use the certified factory directory on the JHNFA official website to verify the certification status and validity period of the corresponding factory by entering the certification number displayed on the product packaging. This is a practicable, objective indicator for assessing the management standards of the manufacturer.

3.3 Mandatory Label Information Checklist

Under the current *Food Labeling Act*, labels on lactic acid bacteria health food products sold in Japan must include (non-exhaustively):

• 1. Food name (*Hinmei*)
• 2. Ingredient names (including additives, listed in descending order by weight)
• 3. Net quantity or drained weight
• 4. Expiration date or best-before date
• 5. Storage instructions
• 6. Name and address of the manufacturer (for imported products, importer information must also be provided)
• 7. Nutrition facts (*Eiyō Seibun Hyōji*) (energy and the five major nutrients)
• 8. Allergen labeling (7 items mandatory; 21 items recommended)
• 9. Foods with Function Claims must additionally include: the notification filing number (*Todokede Bangō*); the functional claim language (as approved in the filed dossier); and mandatory disclaimer language such as "*Honpin wa, shikkan no shindan, chiryō, yobō wo mokuteki to shita mono de wa arimasen*" (This product is not intended for the diagnosis, treatment, or prevention of disease) and other legally required disclaimers.

---

IV. Compliance Considerations for Cross-Border Purchases

4.1 Product Categories and Regulatory Correspondence in the Destination Country

Products lawfully marketed in Japan must comply with the regulatory requirements of the destination country upon entering other national markets. Taking mainland China as an example:

Standard General Trade Import (Direct Import): Lactic acid bacteria health foods, if sold in China under a health function claim, must be registered with (for first-time importers) or filed with the State Administration for Market Regulation (SAMR) in accordance with the *Measures for the Registration and Filing Administration of Health Foods*. Chinese-language labels are required, and label content must receive regulatory approval. Products that have not been registered or filed may not be sold domestically in China as health foods.

Cross-Border E-Commerce Channels: Under the *List of Cross-Border E-Commerce Retail Import Commodities* (the cross-border e-commerce positive list) and related regulations, personal-use products purchased through legitimate cross-border e-commerce platforms are subject to different regulatory rules than general trade. However, they remain subject to individual annual purchase limits (currently RMB 26,000) and per-transaction limits, and may not be resold. Purchasers bear compliance responsibility in their capacity as individual consumers.

United States Market: Lactic acid bacteria products are typically classified as Dietary Supplements, subject to the FDA's Dietary Supplement Health and Education Act (DSHEA, 1994). Labels must include a "Supplement Facts" panel and must carry the FDA standard disclaimer: "This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease." Any structure/function claims must be substantiated and the FDA must be notified within 30 days of market entry.

European Union Market: Under the Food Supplements Directive (Directive 2002/46/EC) and the Health Claims Regulation (EC No 1924/2006), there are currently no EU-level approved general health claims for probiotics. Businesses may not attach functional claims to the word "probiotics" on product labels or in advertising; doing so constitutes a violation. Rules at the individual Member State level vary.

4.2 Label Language Compliance for Cross-Border Purchases

Most countries require foods sold domestically to be labeled in the country's official language. The lawful pathways for -labeled products to enter the Chinese market require:

• Cross-Border E-Commerce for Personal Use: There is currently no mandatory requirement for Chinese-language labels, but platforms must provide Chinese-language product information on their web pages.
• General Trade Import: Compliant Chinese-language labels must be affixed, the content of which must be reviewed by the relevant authorities; unapproved functional claims may not be independently added or translated onto the label.

Consumers who obtain products through overseas purchasing agents (*haitao daigou*) should note that purchasing agent activity that exceeds the scope of personal use constitutes a potential regulatory violation, and such products cannot benefit from the after-sales service and quality assurances of official distribution channels.

4.3 Key Customs Inspection Points

Customs authorities in various countries typically focus on the following when inspecting imported health foods:

• Whether the ingredients contain substances prohibited or subject to usage limits in the destination country (e.g., specific additives, specific botanical extracts)
• Whether complete ingredient declaration documentation is attached (e.g., Certificate of Analysis, COA)
• Whether the strain(s) are included on the destination country's approved list of safe-use organisms
• Whether the product label meets the destination country's requirements

Consumers are advised to confirm the admission status of the relevant probiotic strains in the destination country before making a purchase, as some countries impose explicit restrictions on strains at specific genus levels.

---

V. Actionable Steps for Consumers

The following are specific verification steps compiled from the compliance framework above. Consumers may work through this checklist prior to making a purchase:

• 1. Verify completeness of strain identification: Confirm that the label identifies the product to the strain level (genus + species + strain designation), rather than using only generic terms such as "lactic acid bacteria."
• 2. Confirm the CFU labeling time point: Distinguish between the colony count at time of manufacture and the colony count at end of best-before date. Products labeled with a guarantee such as "*Shōmi kigen-ji ○○ CFU Hoshō*" (Guaranteed ○○ CFU at end of best-before date) provide more complete information and should be preferred.
• 3. Verify that storage conditions match actual shipping conditions: If a product requires refrigeration, but the actual procurement process involves long-distance international logistics with no cold-chain documentation, the impact of the shipping process on the labeled colony count should be assessed.
• 4. Verify manufacturing facility qualifications: For products, the JHNFA certification number or similar third-party certification number printed on the packaging can be used to verify certification status through the official website of the certifying body.
• 5. Confirm product category and claim compliance: If a product carries a functional claim (Foods with Function Claims), the corresponding notification filing number (*Todokede Bangō*) can be searched in the CAA's Foods with Function Claims database to view the functional claim language submitted at the time of filing and confirm that the label content is consistent with the filing.
• 6. Understand import rules in the destination country: Prior to a cross-border purchase, confirm whether the product category is within the scope of admissibility in the destination country, and assess whether the personal-use limit covers the quantity being purchased.
• 7. Verify the availability of batch test reports (COA): Reputable manufacturers can generally provide batch test reports issued by third-party laboratories. Consumers or procurement parties may request these reports to verify that the measured colony count is consistent with the figure stated on the label.

---

Conclusion

Compliant labeling of lactic acid bacteria and probiotic products is, at its core, an expression of information transparency: accurate strain-level identification, a verifiable viable cell count guarantee, and labeling logic that corresponds to storage conditions together form the basis upon which consumers can make rational comparisons when making purchasing decisions. Cross-border purchases add further dimensions, including regulatory differences in the destination country, channel compliance, and label language requirements.

When evaluating products from diverse sources, the most effective safeguard available to consumers is to return to verifiable, objective information: certification numbers that can be looked up, filing records that can be searched, and batch reports that can be requested. For any product that cannot provide the above basic information, the reliability of its label claims should be treated with appropriate caution. The compliance framework described in this paper is based on currently effective regulations; should relevant provisions be updated, the most recent versions published by the competent authorities shall prevail.

---

*This paper is for informational purposes only and does not constitute legal advice. For specific compliance matters, please consult a qualified food regulatory professional or your local competent authority.*