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In 1g of fat, energy present = 37kJ or 37000J and we know that 1cal=4.2J therefore, energy in ig fat in cal = (10/42X37000)cal. Energy present in 5g fat in kcal = (10/42X37X5)kcal or approximately 44kcal.

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14y ago
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10y ago

There are 9 kilo calories per gram of fat. This nutritional information would be useful for someone who is following a calorie controlled diet.

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14y ago

I believe you've got your terms mixed up.

One gram of fat has 9 calories.

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Q: How many Kilocalories are in 5 g of fat?
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