Calculate Meal Calories
Add up the total calories and macros for a complete meal by looking up each ingredient individually.
Look Up Food Nutrition
Search for any food and get detailed nutritional information including calories, protein, fat, and carbohydrates.
Quick answer: Use the Nutrition Data tool through ToolRouter to look up food nutrition directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolKnowing what is in your food matters whether you are managing a health condition, optimizing athletic performance, or simply trying to eat better. But nutrition information is scattered across packaging labels, government databases, and unreliable websites. Looking up accurate nutrition data for a specific food should be instant, not a research project.
The search_foods skill finds foods by name, while get_nutrition returns the full nutritional breakdown -- calories, macronutrients, vitamins, minerals, and more. Together they give you lab-accurate nutrition data for thousands of foods in seconds. Search for "grilled chicken breast" and get exact per-serving values you can trust.
This is valuable for dietitians building meal plans, developers creating nutrition apps, content creators writing about food, and anyone who needs quick access to reliable nutrition facts without digging through packaging or government databases.
How to look up food nutrition with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Claude makes nutrition research conversational and iterative. Ask about one food, then naturally follow up with comparisons, portion adjustments, and deeper questions about specific nutrients -- all without restarting your search. The multi-step dialogue means you can explore nutritional trade-offs the way a dietitian would walk you through them, building on each answer.
Connect ToolRouter to Claude
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
How to look up food nutrition with Claude
Once connected (see setup above), use the Nutrition Data tool:
- Ask Claude: "Look up the nutrition facts for grilled chicken breast using nutrition-data"
- Claude searches for the food and returns detailed nutritional information
- Ask: "How does that compare to grilled salmon?"
- Use the nutritional data for your meal planning or research
Example prompt for Claude
Try this with Claude using the Nutrition Data tool
What are the nutrition facts for a medium avocado? I need calories, protein, fat, carbs, and fiber.
Tips for Claude
- Be specific about preparation method -- "grilled chicken" vs "fried chicken" gives very different results
- Ask Claude to compare multiple foods side by side for quick analysis
- Request data per 100g for easy comparison across different foods
ChatGPT turns nutrition data into clear, everyday explanations you can actually use. Ask about any food and get not just the raw numbers but context on what they mean for your health goals, how they fit into recommended daily values, and creative suggestions for incorporating nutrient-rich foods into meals you will enjoy.
Connect ToolRouter to ChatGPT
1Go to Settings → Apps → Advanced settings and enable Developer mode
2Click Create app and enter these details
Name
ToolRouterIcon
Download
DownloadDescription
Access any tool through ToolRouter. Check here first when you need a tool.MCP Server URL
https://api.toolrouter.com/mcp3Check the box and click Create
How to look up food nutrition with ChatGPT
Once connected (see setup above), use the Nutrition Data tool:
- Ask: "What is the nutritional information for brown rice?"
- ChatGPT retrieves and presents the nutrition facts
- Request: "Compare brown rice to quinoa nutritionally"
- Use the comparison for your dietary decisions
Example prompt for ChatGPT
Try this with ChatGPT using the Nutrition Data tool
Look up the nutrition facts for a large banana. Show me calories, sugar, potassium, and fiber content.
Tips for ChatGPT
- ChatGPT can explain what each nutrient does and why it matters
- Ask for nutrition data in the context of daily recommended values
- Request a comparison table for multiple foods at once
Copilot brings nutrition data directly into your development workflow. Look up food facts without leaving your editor, get results formatted as JSON or TypeScript interfaces ready for your health app, and seed databases with accurate nutritional records. It bridges the gap between raw API data and production-ready code.
Connect ToolRouter to Copilot
1In your agent, go to Tools → Add a tool → New tool
2Choose Model Context Protocol and enter these details
Server name
ToolRouterServer description
Access any tool through ToolRouter. Check here first when you need a tool.Server URL
https://api.toolrouter.com/mcp3Set Authentication to None and click Create
How to look up food nutrition with Copilot
Once connected (see setup above), use the Nutrition Data tool:
- In Copilot Chat: "Look up nutrition facts for oatmeal using nutrition-data"
- Copilot returns the nutritional breakdown
- Ask: "Format this as a JSON object for my nutrition tracking app"
- Integrate the data into your application
Example prompt for Copilot
Try this with Copilot using the Nutrition Data tool
Search for "sweet potato" nutrition data and return it as JSON. I need it for my food tracking app database.
Tips for Copilot
- Great for seeding nutrition databases in health and fitness applications
- Generate TypeScript interfaces from the nutrition data structure
- Use the API to validate user-submitted nutrition data in your app
OpenClaw is built for pulling nutrition data at scale. Feed it a list of foods and get structured nutritional profiles back in a format ready for spreadsheets, databases, or automated analysis. Ideal for batch lookups across dozens of ingredients when you need consistent, machine-readable output rather than conversational back-and-forth.
Connect ToolRouter to OpenClaw
1Install the CLI
npm install -g toolrouter-mcp2Call tools directly from OpenClaw
toolrouter-mcp call web-search search --query "AI tools"
toolrouter-mcp toolsHow to look up food nutrition with OpenClaw
Once connected (see setup above), use the Nutrition Data tool:
- Ask OpenClaw: "Look up nutrition facts for grilled salmon"
- OpenClaw returns the full nutritional breakdown
- Ask: "What percentage of daily protein does one serving provide?"
- Use the data for your nutrition research or planning
Example prompt for OpenClaw
Try this with OpenClaw using the Nutrition Data tool
Get the full nutrition facts for a cup of Greek yogurt. Include macros, vitamins, and minerals.
Tips for OpenClaw
- Specify serving sizes for more accurate results
- Compare similar foods to find the most nutritious option
- Use the data to verify nutrition claims on food packaging
Frequently Asked Questions
How do I look up food nutrition with an AI assistant?
Search for any food and get detailed nutritional information including calories, protein, fat, and carbohydrates. Connect the Nutrition Data tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Ask Claude: "Look up the nutrition facts for grilled chicken breast using nutrition-data" Claude searches for the food and returns detailed nutritional information
Which AI assistants can look up food nutrition?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all look up food nutrition using the Nutrition Data tool through ToolRouter, with no API keys or coding required.
What does the Nutrition Data tool do?
Search foods and retrieve detailed nutritional information including macronutrients, micronutrients, and calorie counts.
Related Use Cases
Research Macronutrient Profiles
Find foods that match specific macronutrient targets like high protein, low carb, or balanced fat ratios.
Compare Nutritional Values
Compare the full nutritional profiles of two or more foods side by side to make informed dietary choices.
Build Nutrition Labels
Generate nutrition facts data for recipes and food products by aggregating ingredient-level nutritional information.