How many calories does a snack with 5 grams of carbohydrates and 5 grams of protein contain?
Answer Options:
Select one of four
A. 90 calories
B. 10 calories
C. 65 calories
D. 40 calories
The Correct Answer and Explanation is:
To calculate the total caloric content of a snack containing 5 grams of carbohydrates and 5 grams of protein, we can use the standard caloric values for each macronutrient:
- Carbohydrates: Each gram of carbohydrates provides 4 calories.
- Protein: Each gram of protein also provides 4 calories.
- Fat: While not mentioned in this scenario, it’s worth noting that each gram of fat provides 9 calories, which we won’t be using here.
Calculation:
- Calories from Carbohydrates:
[
\text{Calories from Carbohydrates} = \text{grams of carbohydrates} \times \text{calories per gram of carbohydrates}
]
[
= 5 \text{ grams} \times 4 \text{ calories/gram} = 20 \text{ calories}
] - Calories from Protein:
[
\text{Calories from Protein} = \text{grams of protein} \times \text{calories per gram of protein}
]
[
= 5 \text{ grams} \times 4 \text{ calories/gram} = 20 \text{ calories}
]
Total Calories:
To find the total caloric content of the snack, we add the calories from carbohydrates and protein:
[
\text{Total Calories} = \text{Calories from Carbohydrates} + \text{Calories from Protein}
]
[
= 20 \text{ calories} + 20 \text{ calories} = 40 \text{ calories}
]
Conclusion:
Thus, the total caloric content of a snack containing 5 grams of carbohydrates and 5 grams of protein is 40 calories.
Answer:
D. 40 calories
This calculation illustrates the basic principles of macronutrient caloric values, emphasizing the importance of understanding how to derive energy values from the foods we consume. Carbohydrates and proteins are essential components of our diet, providing energy needed for various bodily functions and activities. Knowing how to calculate caloric intake from these macronutrients can help individuals manage their nutrition effectively, especially for those looking to maintain a balanced diet, lose weight, or build muscle. Understanding these values is crucial in dietary planning and can aid in making informed food choices.