Look up foods in the USDA FoodData Central database and total the nutrients in a meal. When you share your age and sex, the assessment uses the matching U.S. dietary reference intake instead of the single food-label daily value.
This is an independent project. It is not produced or endorsed by the U.S. Department of Agriculture. The numbers are a comparison with published reference tables, not a diagnosis or a prescription.
The Claude connector and the ChatGPT and Codex plugin search foods, read a serving, and assess a meal. Neither one shops or checks out.
Connector documentation is on the docs page.