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ENERGY DENSITY

High energy dense diets have been linked with obesity.
Such diets tend to be low in plant food and high in "indulgences" i.e foods containing lots of sugar and/or fats. A low fat diet can still be energy dense if it does not contain enough vegetables, fruits and low sugar cereals. A high fat diet can have a low energy density if it contains lots of plant foods. High energy dense foods promote high energy intakes.

Energy density = the number of kilojoules (kJ) per gram of food.

  • A high energy dense food has many kJ per gram of food
    e.g chocolate has 22 kJ/gram,
    nuts has 30kJ/gram
    sweet biscuits 20kJ/gram
    tasty cheese 14kJ/gram
    .


  • A moderate energy dense food has moderate kJ per gram of food
    e.g bread has 10kJ/gram,
    rice has 5kJ/gram,
    flavoured low fat yoghurt 4kJ/gram.



  • A low energy dense food has few kJ per gram of food
    e.g apple, celery, low fat natural yoghurt have <2 kJ/gram




 

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