To calculate the Energy from Fat (\(Ef\)):
\[ Ef = F \times 9 \]
Where:
The energy from fat is the amount of energy (in kilocalories) that is derived from the fat content in food. This is calculated by multiplying the grams of fat by 9, as each gram of fat provides 9 kilocalories of energy.
Let's assume the following value:
Using the formula:
\[ Ef = 20 \times 9 = 180 \text{ kcal} \]
The Energy from Fat is 180 kcal.
Let's assume the following value:
Using the formula:
\[ Ef = 15 \times 9 = 135 \text{ kcal} \]
The Energy from Fat is 135 kcal.