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As a Software Engineer in a Health and Leisure company, your task is to add a new feature to the app: a calorie and nutrition calculator. This tool will calculate and display total calories, sugars, fats, and other nutritional values for different foods based on user input.

You have been provided with the nutrition.json dataset, which contains the necessary nutritional information for various foods. Each value in the dataset is per 100 grams of the food item. The dataset has already been read and loaded for you as the dictionary nutrition_dict.

Dataset Summary

nutrition.json

ColumnDescription
foodThe name of the food.
caloriesThe amount of energy provided by the food, measured in kilocalories (kcal) per 100 grams.
total_fatThe total fat content in grams per 100 grams.
proteinThe protein content in grams per 100 grams.
carbohydrateThe total carbohydrate content in grams per 100 grams.
sugarsThe amount of sugars in grams per 100 grams.

Let's Get Started!

This project is a great opportunity to build a real-world feature from scratch, showcasing your development skills and making a meaningful impact on users' health and wellness.

import json  # Import the json module to work with JSON files

# Load the JSON content into a dictionary
with open('nutrition.json', 'r') as json_file:
    nutrition_dict = json.load(json_file)

# Display the first 3 items of the nutrition dictionary
first_three_items = list(nutrition_dict.items())[:3]
print(first_three_items)

# Create a dictionary to keep track of totals
def nutritional_summary(foods):
    result_dict = {
        "calories": 0,
        "total_fat": 0,
        "protein": 0,
        "carbohydrate": 0,
        "sugars": 0
    }
    
    # Loop through each food item
    for food, grams in foods.items():
        if food not in nutrition_dict:
            return food

        # Calculate nutritional values for food items
        nutrition_values = nutrition_dict[food]
        factor = grams / 100

        # Add these nutritional values to the totals
        result_dict["calories"] += nutrition_values["calories"] * factor
        result_dict["total_fat"] += nutrition_values["total_fat"] * factor
        result_dict["protein"] += nutrition_values["protein"] * factor
        result_dict["carbohydrate"] += nutrition_values["carbohydrate"] * factor
        result_dict["sugars"] += nutrition_values["sugars"] * factor

    # Return the totals
    return result_dict