Introduction of Eco-ka-na

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Eco-ka-na – App for Transparent food chains

This app is to measure and “visualize” the environmental, social and health impacts of food products. Please find such impact scores to decide what to buy and also fill in the survey toward further visualization of food information.

Eco-ka-na: iOS / Android

About this App

The Eco-ka-na app allows users to see the environmental, social, and health impacts of food products. Please use the impact scores to decide what to buy and also fill in the surveys to enable us to increase the coverage of food information on products. When you scan the barcode of a food product, you will find the environmental, social, and health impacts on a five-point scale (the higher the better) and a survey on the information found on the product. Each score is calculated on a company basis, not a product basis.
This app, however, does not take into account the product information such as raw materials, place of origin, nutrition and allergy information since it is not readily available (but you may find such information on the product package!). This is the reason why the app has a survey function, to allow users to submit additional information off of the product package, reflect the data in each score, and display the collected responses.
Please refer to the “About this app” page for details on calculation methods and score illustrations.
In addition, the app collects requests aimed at food companies to provide more information on their products. If you would like to request for more detailed information on a particular product in addition to that provided on the package, please click the “Request missing information for this product” button (illustration of a building with a question mark) on the bottom of each product information page.
You can check the products with high overall scores (top 10%) via ↑10% label, and also top 300 from Home>About Databases>List of Product Categories ①/②/③>List of Products> 1-300. You can set your own priority for impact scores by customizing the display order on the “Settings” page. For example, if you are interested primarily in the environmental impacts of food products, please set the importance of environment to “Important” or “Very Important” on the settings page.
This app uses the product information provided in “JAN Item Code File Service/Integrated Flexible Database” as of December 2019″. Newer products may not be listed, and some products may have not been updated. Certain products’s bar codes may be managed by the individual shop or supermarket. You can try the “Perishable Foods, Deli” database to find the product.

You can also set your own priority for impact scores by customizing the display order on the “Settings” page. For example, if you are interested primarily in the environmental impacts of food products, please set the importance of environment to “Important” or “Very Important” on the settings page.

To change the display language from Japanese to English, please tap the 🌐 mark at the home screen.

About Illustrations

Each illustration visualizes the environmental, social and health impacts of the product.

Environmental Impacts
Social Impacts
Health Impacts
No data

Illustrations by Shinichi Wade

About Databases

A. Perishable Foods (Meats, Vegetables, Seafoods), Deli
Each score is calculated based on the following datasets: LCI Database IDEA v2.1.3, MEXT Standards Tables of Food Composition -2015- (Seventh Revised Edition), Calorie Slism, asken Inc., FY2019 Stock Assessment by Fish Species and Subpopulations, FY2019 Status of International Fisheries Resources.

B. Products from JAN Item Code File Service/Integrated Flexible Database
Each score is calculated based on the following datasets: LCI Database IDEA v2.1.3, MAFF List of JAS Certified Producers, the MSCI Japan ESG Select Leaders Index, Fairtrade Japan’s List of International Fairtrade Certified Organizations, the MSCI Japan Empowering Women Index 2017 Ranking, Toyo Keizai CSR Ranking 2018
※This score is based on the information of the company, not of the individual product.

How to Calculate Scores

A. Perishable Foods (Meats, Vegetables, Seafoods), Deli

◯How to Calculate the Environment Impact Score
E⓪ Life Cycle Assessment (LCA):
CO2 emissions (based on FEAST WG5’s calculation) ÷ Calculated value for global warming of LCI Database IDEA v2.1.3
I. The Environmental Impact Score
If 0≦E⓪<0.3, then 5
If 0.3≦E⓪<0.5, then 4
If 0.5≦E⓪<0.8, then 3
If 0.8≦E⓪<1.0, then 2
If 1.0≦E⓪, then 1

◯How to Calculate the Social Impact Score
Since there is no available database, S⓪=0.

◯How to Calculate the Health Impact Score
Using energy, salt equivalent, fat contents from “MEXT Standards Tables of Food Composition -2015- (Seventh Revised Edition)”, the following values are calculated.
H①Energy ÷ (2,650kcal/day×1/3)
H②Salt equivalent ÷(8.0g/day×1/3)
H③Fat ÷(2,650kcal/day×0.25×1/9×1/3)
Then, H⓪=(H①+H②+H③)÷3.
III.The Health Impact Score:
If 0≦H⓪<0.3, then 5
If 0.3≦H⓪<0.5, then 4
If 0.5≦H⓪<0.8, then 3
If 0.8≦H⓪<1.0, then 2
If 1.0≦H⓪, then 1

B. Products from JAN Item Code File Service/Integrated Flexible Database

◯How to Calculate the Environmental Impact Score
E① Life Cycle Assessment (LCA):
Calculated value for global warming of IDEA Database ÷ Calculated value for global warming of LCI Database IDEA v2.1.3
E② MAFF List of JAS-certified Producers:
If the producer/company is listed, then 0. If not, then 1.
E③ Nomination for ESG Select Leaders Index 2017:
If the producer/company is listed,the value is calculated based on ESG Ratings.
If AAA, then 0.148. If AA, then 0.29. If A, then 0.432. If BBB, then 0.574. If BB, then 0.716. If B, then 0.858. If C, then 1. If the producer/company is not listed, then1.
E⓪=(E①+E②+E③)÷3

I.The Environmental Impact Score:
If 0≦E⓪<0.3, then 5
If 0.3≦E⓪<0.5, then 4
If 0.5≦E⓪<0.8, then 3
If 0.8≦E⓪<1.0, then 2
If 1.0≦E⓪, then 1

◯How to Calculate the Social Impact Score
S①Fairtrade Japan’s List of International Fairtrade Certified Organizations 2019:
If the producer/company is listed, then 0. If not, 1.
S②MSCI Japan Empowering Women Index 2017 Ranking:
If the company brand is listed, then 1 – Biodiversity score/10. If not, then 1.
S③Toyo Keizai CSR Ranking 2018’s Top 300:
If the company brand is listed, then rank/300. If not, then 1.
S⓪=(S①+S②+S③)÷3

II.The Social Impact Score:
If 0≦S⓪<0.3, then 5
If 0.3≦S⓪<0.5, then 4
If 0.5≦S⓪<0.8, then 3
If 0.8≦S⓪<1.0, then 2
If 1.0≦S⓪, then 1

◯How to Calculate the Health Impact Score

III. The Health Impact Score:
As there is no available database, H⓪=0.

How to Reflect the Survey Responses

Environmental impact: If the persentage of “Yes” to the following each questions is more than 50%, add 0.5 each to the score.

  • Is there any information on the production site of the ingredients?
  • Is there any information on what will happen to this product after its best-before and/or expiry date?
  • Is there any information on the company/producer’s activities on reducing plastic waste and/or microplastics?

Social impact: If the persentage of “Yes” (to the question about work environment) or “Labeled” (to the question about Halal) is more than 50%, add 0.5 each to the score. If there is one response of “Labeled” to the question about language, add 0.5 to the score.

  • Is there any information on the employees’ work environment and/or the company/producer’s activities on fair trade?
  • Would you like this product to be Halal certified?
  • Which one of the following languages do you think should be available for this app?

Health impact: If the persentage of “No” (to the question about ingredients) or “Yes” (to the questions about gene modification or allergic compound) is more than 50%, add 0.5 each to the score.

  • Do the product contain ingredients which are not available to the public?
  • Is there any information on gene modification and/or genome editing of the ingredients?
  • Is it clear to you whether this product contains any allergic compound that you should avoid?
The Overall Score
A. Perishable Foods (Meats, Vegetables, Seafoods), Deli

(I.Environmental impact score E⓪+III.Health impact score H⓪)÷2

B. Products from JAN Item Code File Service/Integrated Flexible Database
  • In case of III.Health impact score H⓪=0 (No data & no survey response)

(I.Environmental impact score E⓪+II.Social impact score S⓪)÷2

  • In case of III.Health impact score H⓪≠0

(I.Environmental impact score E⓪+II.Social impact score S⓪+III.Health impact score H⓪)÷3

Contact us

ecokana.app★gmail.com (★→@)

Translated by Yuko Kobayashi