FoodData Central

API

USDA's National Nutrient Database API for food and nutrition data

Overview

FoodData Central API grants access to USDA’s comprehensive nutrient database, including standard reference data for thousands of foods. Endpoints support searching by food name, FDC ID, or category; retrieving detailed nutrient profiles (calories, vitamins, minerals); and filtering branded/unbranded items. Responses are in JSON format. Ideal for nutrition tracking apps, diet planning tools, recipe analyzers, or research projects needing accurate food composition data.

Example Integration (JavaScript)

script.js JS


fetch('https://fdc.nal.usda.gov/')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
JSON Responses
USDA-Backed Data
Branded & Unbranded Food Coverage
Nutrient Profile Endpoints

Frequently Asked Questions

? Is FoodData Central API free to use?

Yes, the API is free for public use, but you need to register for an API key to access its endpoints.

? Does it require an API Key?

Yes, you must sign up on the FoodData Central website to obtain a valid API key before making requests.

? What is the response format?

All API responses are in JSON format, providing structured data on food items and their nutrient compositions.

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Tool Info

Pricing Free

Category Health

Platform Public API

Pros

⊕ Accurate, authoritative data
⊕ Wide range of food items
⊕ Detailed nutrient breakdowns
⊕ Free access with API key

Cons

⊖ Requires API key registration
⊖ Rate limits apply
⊖ Limited real-time updates for new foods