NutriGuide Backend API

Live API: https://nutri-guide-backend.vercel.app

A Node.js/Express API for the NutriGuide Flutter app - Indian nutrition database with BMI calculation and personalized food recommendations.

🔗 Links

	Link
📄 Privacy Policy	nutri-guide-backend.vercel.app/privacy-policy
📸 Instagram	@nexgenxplorerr
▶️ YouTube	@nexgenxplorer
📱 Play Store	NextGenX Apps
📧 Email	nxgextra@gmail.com

Features

• 1014 Indian Foods - Complete nutritional data from INDB 2024.11
• BMI Calculator - With daily calorie & macro recommendations
• Smart Recommendations - Based on weight goals (gain/loss/maintain)
• Diet Filtering - Vegetarian, Non-Vegetarian, Vegan options
• Meal Planning - Breakfast, lunch, dinner, snacks suggestions
• Nutrient Search - Find foods high in protein, iron, calcium, etc.

Quick Start

# Install dependencies
npm install

# Start server
npm start

# Server runs on http://localhost:3000

API Endpoints

Endpoint	Method	Description
/	GET	Health check
/api/stats	GET	Database statistics
/api/food/search?q=paneer	GET	Search foods
/api/food/details/:code	GET	Food details
/api/food/all	GET	All foods (paginated)
/api/food/recommend	POST	Food recommendations
/api/food/meal-plan	POST	Daily meal plan
/api/food/high/:nutrient	GET	Foods high in nutrient
/api/food/smart-recommend	POST	Smart recommendations
/api/bmi/calculate	POST	BMI calculation

Main Endpoint for Flutter

POST /api/food/smart-recommend

Send user profile, get personalized meal plan:

{
  "height": 170,
  "weight": 75,
  "age": 25,
  "gender": "male",
  "diet": "veg",
  "activity_level": "moderate"
}

Response includes:

• BMI value & category
• Suggested goal (weight_gain/loss/maintenance)
• Daily calories & macros (protein, carbs, fat)
• Personalized meal plan

BMI Calculation

POST /api/bmi/calculate

{
  "height": 170,
  "weight": 70,
  "age": 25,
  "gender": "male"
}

Response:

{
  "success": true,
  "bmi": 24.2,
  "category": "Normal",
  "suggested_goal": "maintenance",
  "daily_calories": 2635,
  "macros": {
    "protein_g": 165,
    "carbs_g": 329,
    "fat_g": 73
  }
}

BMI Categories

BMI	Category	Goal
< 18.5	Underweight	weight_gain
18.5 - 24.9	Normal	maintenance
25 - 29.9	Overweight	weight_loss
≥ 30	Obese	weight_loss

Database Info

• Source: Indian Nutrient Database (INDB) 2024.11
• Total Foods: 1014
• Vegetarian: 873
• Non-Vegetarian: 141
• Nutrients: 40+ per food item

Tech Stack

• Node.js
• Express.js
• CSV Parser
• CORS enabled

Deployment

Vercel

npm i -g vercel
vercel --prod

Or connect this repo to Vercel dashboard.

Documentation

See API.md for complete API documentation with examples.

License

ISC License - see LICENSE for details.

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Made with ❤️ by NextGenX