Nutrition Tracker

A MERN stack app to fetch and visualize nutrition data (calories, protein) for any product using the Gemini API.

Features

• Input a product name (e.g., "apple").
• Fetches nutrition data via Gemini API.
• Stores data in MongoDB.
• Displays a bar chart with Chart.js.

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Tech Stack

• Frontend: React (Vite), Chart.js
• Backend: Node.js, Express.js
• Database: MongoDB
• API: Google Gemini

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Setup

1. Clone the Repo:

   git clone https://github.com/snehauppula/nutrition-tracker.git
   cd nutrition-tracker

2. Backend:

   • Go to backend:

     cd backend
     npm install

   • Add .env:

     MONGO_URI=mongodb://localhost:27017/nutrition_tracker
     GEMINI_API_KEY=your_api_key
     PORT=5000
     

   • Start MongoDB (local): mongod
   • Run: npm start

3. Frontend:

   • Go to frontend:

     cd ../frontend
     npm install
     npm run dev

   • Open http://localhost:3000.

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Usage

• Enter a product name.
• See nutrition data in a chart.

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Structure

nutrition-tracker/
├── backend/    # Node.js, Express, MongoDB
├── frontend/   # React, Vite
└── README.md

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Troubleshooting

• Port Issue: Change PORT in .env if 5000 is taken.
• MongoDB: Ensure it’s running or use MongoDB Atlas.
• API: Verify your Gemini API key.

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License

MIT