Calories

Calories are the energy found in food. One kilo-calorie (kcal) is equivalent to the energy needed to increase the temperature of a gram of water by 10C.

What are Calories?

Calories are the energy found in food. One kilo-calorie (kcal) is equivalent to the energy needed to increase the temperature of a gram of water by 10C.

Calories are the energy the body uses and if you give the body too many calories it gets stored as fat.

If you want to use up the excess stored energy, you have to put less energy (food) into the body than it needs so that you will burn your reserves. So in order to lose weight you need to create a negative energy balance, this means you need to consume fewer calories than you require so that the body will be forced to use your stored fat as energy.

The current guidelines recommend that:

  • An average woman can eat approximately 2,000 kcal per day to maintain her weight.
  • An average adult man can eat approximately 2,500 kcal per day to maintain his weight.
  • An average adult obese woman can eat approximately 2200 kcal to maintain their weight.
  • An average adult obese male can eat approximately 2800-3000 kcal to maintain their weight.