Taking in energy

• All food provides energy for the body.
• What is energy measured in?

  Kilojoules (kj)
• What can energy come from?

  • Protein: 18kj in 1g
  • Carbohydrates: 17kj in 1g
  • Lipids: 39kj in 1g
• How can energy in a healthy diet work?

  Energy taken in = Energy requirements of the body
• What happens if more energy is taken in than needed?

  It is stored