How many calories are provided by a food that contains 20 grams of carbohydrate, 8 grams protein, and 5 grams of fat?
1 answer:
Every gram of carbohydrate yields 4 Calories.
Every gram of protein also yields 4 Calories.
Every gram of fat yields 9 Calories.
20 g carb x 4 = 80 Cal
8 g protein x 4= 32 Cal
5 g fat x 9 = 45 Cal.
80+32+45 = 157 Calories. Answer C
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