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Learn about energy

Calculating the energy content of food

You may be familiar with the Nutrition Information Panel that appears on almost all packaged food in Australia:

Nutrition information Panel

  Qty per serve Qty per 100g
Energy 700kJ 1550kJ
Protein, total 3.6g 7.9g
Fat, total 1.7g 3.8g
- saturated 0.4g 0.8g
Carbohydrate 31.0g 68.8g
- sugars 10.7g 23.7g
Dietary fibre, total 6.1g 13.6g
Sodium 110mg 240mg

The total energy of one serving of this food is calculated by adding together the energy provided by the protein, total fat, carbohydrate and dietary fibre.

Nutrients Amount per serve g x kJ/g Kilojoules in one serve
Protein, total 3.6g 3.6 x 17 61.2
Fat, total 1.7g 1.7 x 37 62.9
Carbohydrate 31.0g 31.0 x 17 527
Dietary fibre, total 6.1g 6.1 x 8 48.8
TOTAL     699.9

These values are sourced from the Food Standards Code Standard 1.2.8, [how the energy content of a food is calculated]

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