栄養DB

About NutriDB

NutriDB is an independent nutrition search and comparison service built by a data analyst who wanted a faster, more intuitive way to explore food composition data — one that goes beyond raw spreadsheets.

About the Creator

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NutriDB — Data Analyst & Developer

With a background in healthcare and food-sector data analysis, I built NutriDB to make authoritative public nutrition data accessible to everyday users. Accuracy, transparency, and ease of use are the three principles behind every design decision.

Database Design & SQL

Normalization and query optimization across large nutrition datasets

Data Visualization

Radar charts for nutrient balance, DV% comparison graphs

Nutrition Data Analysis

Cross-referencing dietary reference values, managing estimated-value flags

Full-Stack Development

Go API + Next.js frontend built and maintained end-to-end

Why We Built This

USDA FoodData Central and the Japanese Standard Food Composition Table are among the most comprehensive public nutrition datasets in the world. But their native formats — CSV exports and Excel files — are not designed for everyday lookup or comparison.

NutriDB transforms that raw data into a searchable, visual experience: side-by-side nutrient comparisons, Daily Value percentages, and radar charts that make it immediately obvious how nutrient-dense a food actually is.

Data Quality Commitments

Direct from primary sources

Data is imported programmatically from official government and USDA sources — no manual transcription. INFOODS codes and units are preserved exactly as published.

Estimated values and trace amounts are flagged

Where the source data marks a value as "estimated" or "trace amount (Tr)", we surface that flag on-screen rather than hiding uncertainty from users.

Daily Value percentages

For EN food pages, %DV is calculated using U.S. FDA reference values (2020 RDIs). For JP pages, Japanese DRI 2020 (成人基準) is used. Both are shown where available.

Open data attribution

USDA FoodData Central data is in the public domain. Japanese composition table data is published under CC0. Attribution is shown on every page.

Data Sources

USDA FoodData Central

Published by the U.S. Department of Agriculture, Agricultural Research Service.
Coverage: 300,000+ foods / branded and SR Legacy datasets
License: Public Domain

Japanese Standard Tables of Food Composition 2020 (8th Edition)

Published by the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan.
Coverage: 2,478 foods / 54 nutrients
License: CC0 1.0 Universal (Public Domain)

%DV reference values use FDA 2020 RDIs for EN pages and Japanese DRI 2020 for JP pages.

Feedback & Data Corrections

Found a data error or have a feature suggestion? We read every message and use feedback to improve data quality.