Nutrition Labeling under the Japanese Food Labeling Standards

Overview

Nutrition labeling in Japan refers to the system under which the amount of nutrients and energy contained in food is indicated on the package label. The purpose is to help consumers check the nutritional content of food products before purchase.

Under the Japanese Food Labeling Standards, nutrition labeling is generally mandatory for processed foods and additives sold to consumers in containers or packages. Imported foods sold in Japan must also be checked against Japanese nutrition labeling requirements.

Foods Subject to Nutrition Labeling

Nutrition labeling is generally mandatory for processed foods and additives sold to general consumers. In contrast, nutrition labeling may be voluntary for fresh foods or business-use foods, depending on the product and distribution form.

Business-use foods generally refer to foods supplied for business purposes, such as foods sold in bulk to restaurants, food manufacturers or other business operators rather than directly to individual consumers. However, if nutrition or energy-related information is voluntarily displayed, the label must still comply with the Food Labeling Standards.

In some cases, nutrition labeling may be omitted, for example where the food is sold by a small-scale business operator and the applicable exemption conditions are met. In practice, it is necessary to confirm whether the product is for general consumers or business use, whether it is a processed food or fresh food, and whether the manufacturer or seller falls within an exemption.

Main Nutrition Items

The basic mandatory nutrition items are energy, protein, fat, carbohydrate and salt equivalent. Depending on the product, additional nutrients such as sugars, dietary fiber, vitamins or minerals may also be shown.

The declared values may be based on analytical values, calculated values, estimated values, values based on food composition tables, or other reasonable data. For imported foods, nutrition data and product specifications obtained from the overseas manufacturer should be reviewed and arranged into a format suitable for the Japanese label.

Practical Points for Imported Foods

For imported foods, a nutrition facts panel shown on the overseas label cannot always be used directly as Japanese nutrition labeling. The serving unit, nutrient names, rounding rules and conversion into salt equivalent must be checked under Japanese rules.

Particular care is required where the overseas label shows “sodium.” In Japan, sodium is generally indicated as salt equivalent, so the conversion must be reviewed carefully. Overseas labels may also be based on serving size, while Japanese nutrition labeling may require a different unit of indication.

Even when using the overseas manufacturer’s nutrition table, the Japanese label should be checked for the correct food unit, display order, nutrient names, units and rounding method under the Japanese Food Labeling Standards.

Relationship with Nutrient Content Claims

When using nutrient content claims such as “low calorie,” “reduced sugar,” “low salt,” “high protein,” or “contains calcium,” it is not enough simply to display the nutrient value. The product must meet the relevant criteria under the Japanese Food Labeling Standards.

Nutrient content claims include claims that a nutrient is high, low, absent, reduced or added. The applicable criteria differ depending on the wording used. Therefore, the relevant tables and administrative guidance under the Food Labeling Standards should be checked before using such claims.

Nutrition-related advertising may also raise issues under the Premiums and Representations Act or the Health Promotion Act if the overall message misleads consumers. Particular care is required where the wording gives a strong impression of health improvement or disease prevention.

Relationship with Advertising and Sales Descriptions

Nutrition labeling is not limited to the package label. Product pages, advertisements, social media posts and in-store displays may also need to be checked where nutrition or health-related statements are made.

For example, even if the package label only shows ordinary nutrition information, an e-commerce page or advertisement may create legal issues if it uses expressions such as “ideal for maintaining health” or “simply drinking it daily improves your health.” Such statements may raise issues under the Premiums and Representations Act, the Health Promotion Act or the PMD Act.

For imported foods, overseas sales materials and advertising copy should not be translated automatically for the Japanese market. In Japan, package nutrition labeling and advertising expressions should be reviewed separately but consistently.

Practical Checklist

When reviewing nutrition labeling, the first step is to confirm whether the product is subject to mandatory labeling, whether all required nutrition items are included, whether the unit of indication is appropriate, and whether there are supporting documents for the declared values.

For imported foods, nutrition tables, product specifications, certificates of analysis and related documents should be obtained from the overseas manufacturer before importation or at an early sales preparation stage. Nutrition labeling should not be left until after customs clearance.

In practice, the following points should be checked:

• whether the product is a processed food, additive, fresh food or business-use food;
• whether nutrition labeling is mandatory, voluntary or eligible for omission;
• whether energy, protein, fat, carbohydrate and salt equivalent are properly indicated;
• whether the display unit, order, nutrient names, units and rounding method comply with Japanese rules;
• whether sodium shown on the overseas label has been properly converted into salt equivalent;
• whether nutrient content claims meet the criteria under the Food Labeling Standards;
• whether supporting documents such as nutrition tables, specifications or certificates of analysis are available;
• whether labels, e-commerce pages, advertisements, social media posts and in-store displays are consistent and do not make excessive nutrition or health claims.

Why This Matters for Overseas Suppliers and Export-Side Freight Forwarders

For overseas manufacturers, exporters, customs brokers and export-side freight forwarders, nutrition labeling is often treated as a simple translation issue. In practice, Japan may require different nutrient names, display units, order, rounding rules and sodium-to-salt equivalent conversion from those used on the overseas label.

The practical issue is not only whether nutrition data exists. The data must be suitable for Japanese labeling and must support any nutrition-related claims made on the package, product page or advertisement. Early confirmation helps prevent label corrections, sales delays, retailer objections and repeated document requests from Japanese business partners.