A client's post-workout meal contains 30 g of carbohydrate, 20 g of protein, and 10 g of fat. Approximately how many kilocalories does the meal provide?
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Answer: B
240 kcal: This counts every gram at 4 kcal (60 g × 4). Fat provides 9 kcal per gram, not 4.
290 kcal: Correct. Carbohydrate 30 × 4 = 120, protein 20 × 4 = 80, fat 10 × 9 = 90. Total 120 + 80 + 90 = 290 kcal.
340 kcal: This counts protein at 9 kcal per gram (120 + 180 + 40). Protein provides 4 kcal per gram.
540 kcal: This counts every gram at 9 kcal (60 × 9). Only fat provides 9 kcal per gram.
Energy per gram: carbohydrate 4, protein 4, fat 9, alcohol 7 kcal. Multiply grams by these values and add.