In the topic of Energy in Food, how many kilocalories (Calories) are provided by 30 grams of fat, assuming fat provides 9 kcal per gram?

• A. 270 kcal
• B. 150 kcal
• C. 120 kcal
• D. 300 kcal

Answer: (A)

Verified step by step guidance

1. Identify the energy provided per gram of fat. According to the problem, fat provides 9 kilocalories (kcal) per gram.
2. Determine the total grams of fat given in the problem, which is 30 grams.
3. Use the formula to calculate total energy from fat: \(\text{Total Energy (kcal)} = \text{grams of fat} \times \text{kcal per gram}\).
4. Substitute the known values into the formula: \(\text{Total Energy (kcal)} = 30 \times 9\).
5. Multiply the values to find the total kilocalories provided by 30 grams of fat.