How many total kilocalories are in a snack containing 42g protein, 44g fat, and 206g carbohydrates?

To find the total kilocalories in the snack, the macronutrients must be calculated based on their respective caloric values: protein provides 4 kilocalories per gram, fat provides 9 kilocalories per gram, and carbohydrates provide 4 kilocalories per gram.

Calculating the kilocalories for each macronutrient:

1. Protein:

• 42 grams of protein × 4 kcal/gram = 168 kilocalories

2. Fat:

• 44 grams of fat × 9 kcal/gram = 396 kilocalories

3. Carbohydrates:

• 206 grams of carbohydrates × 4 kcal/gram = 824 kilocalories

Now, sum these values to get the total kilocalories:

168 kcal (from protein) + 396 kcal (from fat) + 824 kcal (from carbohydrates) = 1388 kilocalories.

The correct answer to the question is based on correctly performing the calculations for each macronutrient and understanding their caloric contributions. The total is thus 1388 kilocalories, which aligns with one of the provided options.