AI-Powered Food Nutrition Analysis from Images

Name: AI-Powered Food Nutrition Analysis from Images
Rating: 5 (12 reviews)
Author: Free N8N

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AI & Machine Learningautomationfood analysisjsonlangchainnutritionopenaivision api

Automate detailed nutritional analysis of meals from images using OpenAI Vision and Langchain. This workflow extracts meal name, calories, macronutrients, and health scores, outputting structured JSON.

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About This Workflow

Overview

This n8n workflow automates the process of analyzing food images to extract detailed nutritional information. It leverages the OpenAI Vision API to identify food items, estimate portion sizes, and calculate various nutritional values. The results are then processed by Langchain nodes to format the output into a structured JSON object, suitable for integration with applications like a calorie tracking app. This workflow solves the problem of manual food logging and provides an AI-driven solution for quick and accurate nutritional assessment.

Key Features

Analyzes food images to identify meal components.
Estimates portion sizes and calculates key nutritional data (calories, protein, carbs, fat, fiber, sugar, sodium).
Provides a confidence score for the analysis accuracy.
Assesses the overall healthiness of the meal with a health score.
Outputs structured JSON for easy application integration.

How To Use

Set up the meal_image_webhoook to receive image data via HTTP POST requests.
Configure the analyze_image node with your OpenAI API key and provide the detailed prompt for food analysis.
Connect the output of analyze_image to the extract_results node (using Langchain's Chain LLM) to format the initial AI response.
Utilize the Structured Output Parser or Auto-fixing Output Parser to ensure the extracted data conforms to the expected JSON schema.
Configure the respond_to_webhook node to return the structured nutritional data back to the calling application.

Apps Used

automation

food analysis

json

langchain

nutrition

openai

vision api

Workflow JSON

{
  "id": "be8266a3-8a03-4645-b841-d8d161e200d6",
  "name": "AI-Powered Food Nutrition Analysis from Images",
  "nodes": 0,
  "category": "AI & Machine Learning",
  "status": "active",
  "version": "1.0.0"
}

Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.