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Energy drinks and caffeine

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What is caffeine?

Caffeine is a drug which comes from the leaves, beans or nuts of different plants. It is a stimulant drug which means that it speeds up the brain and nervous system.

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Energy drinks and caffeine
Energy drinks and caffeine



In addition to being present in energy drinks, caffeine is also found in coffee, chocolate, tea and some soft drinks. The caffeine content of drinks where it is found naturally (tea, coffee, chocolate) can also vary widely depending on how they are prepared.

Some prescription and over the counter medications may also contain caffeine, such as cough medicine, headache tablets and slimming products.

Physical effects can include

  • feel more awake
  • heart beats faster
  • body temperature rises

Effects depend on...

Caffeine can affect people in different ways and how it does depends on how much you consume and your height and weight, whether you have caffeine often, whether you have caffeine on its own, with food or with other drugs (including alcohol).

The effects of caffeine can also depend on your general health, if you are pregnant or breastfeeding and your mood. 

  • urinate more
  • digestive system produces more acid

How energy drinks & caffeine affects your body

Tap a body part to learn more of the effects energy drinks & caffeine places on your body.

Long term effects can include

  • heart palpitations
  • nausea
  • insomnia
  • headaches
  • dependence
  • nervousness
  • become delirious

General information

Is caffeine a problem for you?

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    1800 250 015

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    • drug counselling

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    • drug and alcohol residential treatment

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    Not sure what service you need? Call the Alcohol and Drug Information Service on 1800 250 015.

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