Add Calorie Count App idea (Tier 2) - ingredient-based meal builder

Projects/2-Intermediate/Calorie-Count-App.md

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+#  App Idea: Calorie Count App
+
+**Tier:** 2 - Intermediate
+
+---
+
+##  Description
+
+The **Calorie Count App** allows users to calculate the total **calorie count** and other nutritional values (like **protein** and **natural sugar**) of a custom meal by selecting ingredients and quantities.
+
+For example, if a user creates a **pizza** with ingredients such as *dough, mayo, sauce, carrot, onions, cheese*, the app will display the total calorie, protein, and sugar count for the entire meal.
+
+---
+
+##  Purpose of the Application
+
+The purpose of this app is to help users:
+- Track their calorie intake based on custom recipes or meals.
+- Make healthier food choices by understanding nutritional breakdowns.
+- Simplify fitness and diet tracking through ingredient-based analysis.
+
+---
+
+##  Resources Needed
+
+- **Food Nutrition Database/API** (e.g., Edamam Food Database API, Nutritionix API)
+- **Frontend framework** (React / Vue / Flutter for mobile)
+- **Backend service** (Node.js / Firebase / Django)
+- Optional: **Authentication service** (Firebase Auth or Auth0)
+
+---
+
+##  User Stories
+
+- User can **input ingredients** manually or select them from a predefined list.  
+- User can **enter the quantity** (in grams, cups, or servings) for each ingredient.  
+- User can **view total calorie count** for the entire meal.  
+- User can **view macronutrient breakdown** (protein, fat, carbs, sugar).  
+- User can **save meals** for future reference.  
+- User can **edit or remove ingredients** from a meal before calculating.
+
+---
+
+##  Bonus Features
+
+- User can **scan barcodes** of packaged foods to automatically fetch nutrition data.  
+- User can **log daily meals** and track total calories per day.  
+- User can **set dietary goals** (e.g., calorie limit, protein target).  
+- User can **generate reports or insights** on weekly eating patterns.  
+- User can **share meals** with friends or nutrition coaches.
+
+---
+
+##  Useful Links and Resources
+
+- Edamam Food Database API Documentation  
+- Nutritionix API  
+- USDA FoodData Central  
+- React Documentation  
+- Firebase Documentation
+
+---
+
+##  Example Projects
+
+- Calorie Counter projects on GitHub (search term: "calorie counter app")  
+- MyFitnessPal — popular calorie and nutrition tracking app.
+
+---
+
+**Note:** This idea is distinct from the existing *Calorie Counter (Tier 3 – Advanced)* project in the repo.  
+The existing idea focuses on transforming and searching a raw dataset (USDA MyPyramid) and optimizing large-dataset search.  
+This *Calorie Count App* focuses on **ingredient-level meal construction** and **real-time aggregated nutrition** (user-oriented, not a dataset transformation challenge).