A Calorie (cal) is a measure of energy. We can measure how much energy (cal) our bodies use and how much energy is in the food and drink that we consume.
Energy is also measured in kilojoules (kJ) and you might see this used sometimes. In Australia, we have largely transitioned to using kJs to express the energy our bodies need and the energy we get from food and drink.
Sometimes, though, energy is still expressed in cals and at Youfoodz we have opted to use cal as the preferred unit of measure.
1 cal = 4.2 kJ