Look Up Food Nutrition
Search for any food and get detailed nutritional information including calories, protein, fat, and carbohydrates.
Research Macronutrient Profiles
Find foods that match specific macronutrient targets like high protein, low carb, or balanced fat ratios.
Quick answer: Use the Nutrition Data tool through ToolRouter to research macronutrient profiles directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolDiets built around specific macronutrient ratios -- high protein for muscle building, low carb for keto, balanced macros for general health -- require knowing the macronutrient profile of every food you eat. Finding foods that fit your targets means researching dozens of options and comparing their protein, fat, and carb content per serving.
The search_foods and get_nutrition skills let you look up any food and see its complete macronutrient breakdown. Search for high-protein foods, compare their profiles, and build a list of go-to options that hit your targets. Instead of guessing or relying on incomplete lists from blog posts, you work with real nutritional data.
This is valuable for athletes designing performance diets, trainers creating client meal plans, keto dieters finding compliant foods, and anyone trying to hit specific macro targets consistently. Having accurate macronutrient data takes the guesswork out of diet planning and makes it possible to build truly balanced meals.
How to research macronutrient profiles with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Claude transforms macro research into an exploratory conversation. Start by comparing a few protein sources, then drill into the ones with the best ratio, ask about preparation methods that affect macros, and build a shortlist of foods that hit your targets. Each follow-up question refines your research without starting over.
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 research macronutrient profiles with Claude
Once connected (see setup above), use the Nutrition Data tool:
- Ask Claude: "Look up the macronutrient profile of chicken breast, tofu, and lentils using nutrition-data"
- Claude retrieves and compares the macros for each food
- Ask: "Which has the highest protein-to-calorie ratio?"
- Use the comparison to choose the best foods for your macro targets
Example prompt for Claude
Try this with Claude using the Nutrition Data tool
Compare the protein, fat, and carb profiles of these foods per 100g: chicken breast, salmon, eggs, Greek yogurt, and tofu. Which is best for a high-protein, low-fat diet?
Tips for Claude
- Ask Claude to rank foods by specific macro ratios
- Request data per 100g for fair cross-food comparisons
- Build a shortlist of foods that meet your specific macro targets
ChatGPT explains macronutrient data in the context of your actual goals. It does not just show you that chicken has 31g of protein per 100g -- it explains why that matters for muscle building, suggests meal combinations that hit your macro targets, and recommends foods you might not have considered. Nutrition data becomes actionable diet advice.
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 research macronutrient profiles with ChatGPT
Once connected (see setup above), use the Nutrition Data tool:
- Ask: "What is the macronutrient breakdown of almonds per 100g?"
- ChatGPT returns the detailed macro profile
- Request: "Find me five high-protein, low-carb foods and compare their macros"
- Use the analysis for your diet planning
Example prompt for ChatGPT
Try this with ChatGPT using the Nutrition Data tool
I need high-protein, low-carb foods for a keto diet. Look up the macros for steak, eggs, cheese, salmon, and avocado. Present as a comparison table.
Tips for ChatGPT
- ChatGPT can explain why certain macro ratios matter for specific goals
- Ask for food suggestions that fill gaps in your current macro intake
- Request meal combinations that hit specific macro targets
Copilot fetches macronutrient data and delivers it in developer-friendly formats. Request macro profiles as JSON arrays, generate TypeScript types from the data structure, and build food comparison logic directly from real nutritional records. It fits naturally into the workflow of building nutrition tracking apps and fitness platforms.
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 research macronutrient profiles with Copilot
Once connected (see setup above), use the Nutrition Data tool:
- In Copilot Chat: "Get macronutrient data for chicken breast, rice, and broccoli"
- Copilot returns the macro profiles
- Ask: "Create a TypeScript type for this nutrition data and output sample records"
- Use the structured data in your application
Example prompt for Copilot
Try this with Copilot using the Nutrition Data tool
Look up macros for 10 common high-protein foods and return them as a JSON array with name, calories, protein, fat, and carbs per 100g.
Tips for Copilot
- Build a macro database for your nutrition application from real data
- Generate food comparison features using the structured output
- Create macro-based food recommendation logic from the data patterns
OpenClaw runs macro comparisons across many foods in one pass, extracting structured data you can pipe into spreadsheets or analysis tools. Query ten protein sources at once and get a clean dataset with per-100g breakdowns, ready for sorting and filtering without manual data entry.
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 research macronutrient profiles with OpenClaw
Once connected (see setup above), use the Nutrition Data tool:
- Ask OpenClaw: "Compare the macros of chicken breast, turkey breast, and lean beef per 100g"
- OpenClaw retrieves and compares the profiles
- Ask: "Which has the best protein-to-fat ratio?"
- Use the analysis for diet optimization
Example prompt for OpenClaw
Try this with OpenClaw using the Nutrition Data tool
Look up macronutrients for quinoa, brown rice, and sweet potato. I want to compare carb sources for meal prep.
Tips for OpenClaw
- Compare foods within the same category for meaningful insights
- Look at fiber content alongside carbs for a more complete picture
- Research both raw and cooked versions since macros change with cooking
Frequently Asked Questions
How do I research macronutrient profiles with an AI assistant?
Find foods that match specific macronutrient targets like high protein, low carb, or balanced fat ratios. 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 macronutrient profile of chicken breast, tofu, and lentils using nutrition-data" Claude retrieves and compares the macros for each food
Which AI assistants can research macronutrient profiles?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all research macronutrient profiles 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
Calculate Meal Calories
Add up the total calories and macros for a complete meal by looking up each ingredient individually.
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.