Nutritionix
Nutritionix operates the world's largest verified nutrition database, exposing a Track API (v2) that converts natural-language food and exercise descriptions into full nutrient analysis, and powers food search, branded item lookup, and restaurant menu data for diet, fitness, and health applications.
APIs
Nutritionix Track API v2
REST API for translating plain-text food and exercise descriptions into detailed nutrient and calorie analysis, searching the verified nutrition database, and looking up branded...
Features
Convert free-text meal descriptions into full nutrient breakdowns including calories, macros, and micronutrients.
Convert free-text activity descriptions into calorie-burn estimates personalized by gender, weight, height, and age.
Typeahead search returning matched common foods and branded foods for autocomplete experiences.
Retrieve detailed nutrition for branded grocery and restaurant menu items by nix_item_id or UPC.
Access the world's largest verified nutrition database, including USDA NDB-linked common foods and over a million branded items.
Use Cases
Power food logging and calorie-counting apps with natural-language meal entry.
Estimate calories burned from logged workouts and activities.
Surface accurate nutrition facts for restaurant and chain menu items.
Generate FDA-style nutrition labels from API nutrient data.
Integrations
Common-food results are linked to USDA National Nutrient Database (NDB) numbers and nutrient attribute IDs.
Nutritionix is part of Syndigo; developer documentation is hosted on the Syndigo docs platform.