Question

A nutritionist who works for a fitness club helps members by evaluating their diets. As part of her evaluation, she asks members for the number of fat grams and carbohydrate grams that they consumed in a day. Then, she calculates the number of calories that result from the fat, using the following formula: calories from fat = fat grams X 9 Next, she calculates the number of calories that result from the carbohydrates, using the following formula: calories from carbs = carb grams X 4 The nutritionist asks you to write a program that will make these calculations.

Answer 1

To create a program for calculating calories from fat and carbohydrates, it is necessary to use the Atwater system values: 9 calories per gram of fat and 4 calories per gram of carbohydrates. The program multiplies the amount of fat grams by 9 and the amount of carb grams by 4 to find the total caloric intake.

Step-by-step explanation:

This program would apply the Atwater system for determining energy content of foods, which uses the average caloric content of macronutrients: proteins, carbohydrates, and fats. Specifically, the program will use the facts that 1 gram of fat provides about 9 Calories and 1 gram of carbohydrates provides about 4 Calories. To calculate the calories from fat, one would multiply the number of fat grams by 9. Similarly, to calculate the calories from carbohydrates, one would multiply the number of carbohydrate grams by 4.

As fatty foods have more calories per unit mass compared to proteins or carbohydrates, it is important for fitness club members to monitor their intake, especially if they are managing their weight or fitness goals. The nutritional labels on food make this easy by providing the breakdown of calories from each macronutrient. For instance, if a member consumed 15 grams of fat and 50 grams of carbohydrates, the program would calculate 135 calories from fat (15g x 9) and 200 calories from carbohydrates (50g x 4), totaling 335 calories.