1 g of fat yields about 380 kJ of energy How many dietary ca

1 g of fat yields about 38.0 kJ of energy. How many dietary calories (Cal) arc in 297. g of fat? (1 Cal = 1 kcal. 1 kcal = 4.184 kJ) Number of dietary calories in 297. g of fat = Cal The recommended calorie intake for an adult is 2200 calories (2200 kcal). What percentage of your daily recommended calories intake does 297. g of fat contribute? Percentage of your daily recommended calories intake =

Solution

1g fat = 38kj or 38/4.184 kcal =9.08 kcal

so 297 g fat wil yield = 297*9.08 =2696.76 kcal

%age contriuted by fat = 2696.76/2200*100 =122.58 %

recommended calorie intake 2200kcal