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Learn about energy

Where do we get energy?

Most of what we eat and drink provides our bodies with energy. Energy is required to fuel bodily processes (metabolism) and physical activity. If we consume more energy than we use for metabolism and physical activity, the excess is stored as body fat.

Protein, fats and carbohydrates are converted into energy in different quantities. Vitamins and minerals are also essential nutrients for the body, but they are not converted into energy.

Energy is measured in kilojoules (kJ)

Energy Content

1 gram of protein 17 kJ
1 gram of fat 37kJ
1 gram of carbohydrates 17kJ
1 gram of dietary fibre 8kJ
1 gram of alcohol 29kJ

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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