Look Up Food Nutrition
Search for any food and get detailed nutritional information including calories, protein, fat, and carbohydrates.
Compare Nutritional Values
Compare the full nutritional profiles of two or more foods side by side to make informed dietary choices.
Quick answer: Use the Nutrition Data tool through ToolRouter to compare nutritional values directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolChoosing between similar foods is easier when you can see their nutrition side by side. Is almond milk or oat milk better for your goals? Does brown rice really beat white rice nutritionally? Is quinoa worth the price premium over regular rice? These questions come up constantly in meal planning, grocery shopping, and diet optimization.
The search_foods and get_nutrition skills let you pull full nutritional profiles for any food and compare them directly. Look at calories, protein, fat, carbs, fiber, vitamins, and minerals side by side. The comparison reveals differences that are not obvious from marketing claims or general nutrition advice.
This is useful for anyone making food choices -- health-conscious shoppers comparing products, parents choosing the most nutritious options for their kids, athletes optimizing their performance diet, or food bloggers writing evidence-based comparison content. Having actual data makes dietary decisions objective instead of guesswork.
How to compare nutritional values with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Claude runs multi-food comparisons as a fluid research session. Pull up three milks side by side, ask which wins on protein, pivot to calcium content, then add a fourth option you just thought of. The conversation builds on itself so your comparison gets more nuanced with each question rather than starting from scratch.
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 compare nutritional values with Claude
Once connected (see setup above), use the Nutrition Data tool:
- Ask Claude: "Compare the nutrition of almond milk vs oat milk vs whole milk using nutrition-data"
- Claude retrieves nutrition data for each and presents a comparison
- Ask: "Which is the best choice for someone trying to increase protein intake?"
- Use the comparison to make an informed choice
Example prompt for Claude
Try this with Claude using the Nutrition Data tool
Compare brown rice, white rice, and quinoa nutritionally. Show calories, protein, fiber, and key vitamins per cooked cup. Which is the most nutritious overall?
Tips for Claude
- Compare per 100g for standardized comparisons
- Ask Claude to highlight the biggest nutritional differences
- Request a recommendation based on your specific dietary goals
ChatGPT presents food comparisons as clear, formatted tables and then explains what the differences actually mean for you. It goes beyond raw numbers to tell you why one option might be better for post-workout recovery, heart health, or weight management, helping you make informed choices without needing a nutrition degree.
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 compare nutritional values with ChatGPT
Once connected (see setup above), use the Nutrition Data tool:
- Ask: "Compare the nutrition of a banana versus an apple"
- ChatGPT retrieves and presents the comparison
- Request: "Which is better for a post-workout snack?"
- Get a recommendation based on the nutritional data
Example prompt for ChatGPT
Try this with ChatGPT using the Nutrition Data tool
Compare whole wheat bread vs sourdough vs white bread nutritionally. I want to know about calories, fiber, and glycemic impact.
Tips for ChatGPT
- ChatGPT can explain the health implications of nutritional differences
- Ask for context-specific recommendations based on the comparison
- Request the comparison as a formatted table for easy sharing
Copilot generates comparison data structures you can drop directly into your application code. Get side-by-side nutrition objects as JSON, create comparison chart datasets, and build food ranking algorithms from real nutritional values without switching out of your editor or manually formatting API responses.
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 compare nutritional values with Copilot
Once connected (see setup above), use the Nutrition Data tool:
- In Copilot Chat: "Compare nutrition of chicken vs tofu per 100g"
- Copilot returns the side-by-side data
- Ask: "Generate a comparison component with this data"
- Use the comparison in your nutrition application
Example prompt for Copilot
Try this with Copilot using the Nutrition Data tool
Compare nutrition data for 5 common protein sources per 100g and return as a JSON array for my food comparison feature.
Tips for Copilot
- Build food comparison features in your app using real nutrition data
- Generate comparison charts from the structured output
- Create automated food ranking algorithms from the nutritional data
OpenClaw automates large-scale nutritional comparisons, pulling data for dozens of foods and returning structured results suitable for automated ranking and filtering. When you need to compare every protein source in a category or generate comparison datasets for content, OpenClaw processes the queries methodically and delivers clean tabular output.
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 compare nutritional values with OpenClaw
Once connected (see setup above), use the Nutrition Data tool:
- Ask OpenClaw: "Compare the nutrition of salmon vs chicken breast per 100g"
- OpenClaw retrieves and compares both profiles
- Ask: "Which is better for omega-3 intake?"
- Use the data to make an informed dietary choice
Example prompt for OpenClaw
Try this with OpenClaw using the Nutrition Data tool
Compare sweet potato, regular potato, and cauliflower nutritionally. Which is best for a low-carb diet?
Tips for OpenClaw
- Always compare using the same serving size for fair results
- Look beyond just calories -- micronutrient differences matter too
- Consider preparation method since it affects the final nutritional profile
Frequently Asked Questions
How do I compare nutritional values with an AI assistant?
Compare the full nutritional profiles of two or more foods side by side to make informed dietary choices. 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: "Compare the nutrition of almond milk vs oat milk vs whole milk using nutrition-data" Claude retrieves nutrition data for each and presents a comparison
Which AI assistants can compare nutritional values?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all compare nutritional values 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.
Research Macronutrient Profiles
Find foods that match specific macronutrient targets like high protein, low carb, or balanced fat ratios.
Build Nutrition Labels
Generate nutrition facts data for recipes and food products by aggregating ingredient-level nutritional information.