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The science of nutrition and healthy eating
The science of nutrition and healthy eating

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Week 5: Energy from food and sweeteners


Welcome to Week 5 of the course.

This week you will get a better understanding of the energy from food and how sweeteners are used in our food and drink.

By the end of this week’s study you will understand:

  • the difference between calories and joules
  • how each food group contributes to the energy in your food and drink
  • how to work out the energy in food
  • the reference values of the different food groups.

Figure 1 is an image of a bomb calorimeter, which you will learn more about in the next sections.

An image of a blue and grey bomb calorimeter.
Figure 1 A bomb calorimeter.