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Caffeine is a stimulant drug acting on the brain and nervous system. It is found in coffee, most teas, cocoa, chocolate, cola and energy drinks.

It can make users feel more awake, and raise the heart rate and blood pressure. In larger amounts it can lead to feeling restless and anxious, headaches and can cause trouble getting to sleep or poisoning. Regular consumption may lead to withdrawal problems such as headache, fatigue, irritability, and lack of clarity in thinking.

Follow the links below to find trusted information about caffeine.

Last reviewed: February 2014

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Caffeine is a naturally occurring compound found in the leaves and fruits of certain plants. Caffeine is found in coffee, tea, cocoa, cola soft drinks and energy drinks. It may also be found in chocolate bars, energy bars and some over-the-counter medications, such as cough syrup and slimming tablets.

Read more on Better Health Channel website

Caffeine | Your Fertility

Caffeine is a stimulant, found in different amounts, in coffee, black and green tea, energy drinks, some soft drinks, and in chocolate

Read more on Your Fertility website

Pregnancy - Pregnancy Topics - Caffeine in pregnancy

It's best to limit the amount of caffeine-containing drinks you have during pregnancy. Drinks that contain caffeine include coffee, tea, cola drinks and some other soft drinks, including 'energy' drinks.

Read more on Women's and Children's Health Network website

What is Caffeine? | myVMC

Caffeine is a natural substance found in more than 60 plant species including tea leaves, coffee beans, guarana and cocoa seeds. It belongs to a group of drugs called methylxanthines, which have several stimulatory effects on the body.

Read more on myVMC – Virtual Medical Centre website

Caffeine, Food, Alcohol, Smoking and Sleep

Caffeine is a drug that acts as a stimulant, both mentally and physically. It is found in many drinks and foods that are common in our everyday life. These include tea, coffee, chocolate and cola drinks.

Read more on Sleep Health Foundation website

Caffeine Avoidance - BluePages

Find out if avoiding caffeine is likely to help.

Read more on e-hub Web Services - Australian National University (ANU) website

Kids' Health - Topics - Caffeine

Caffeine is a drug because it has an effect on the body. It acts as a stimulant - that means the brain and nervous system speed up.

Read more on Women's and Children's Health Network website

Breastfeeding and maternal caffeine consumption | Australian Breastfeeding Association

Most breastfeeding mothers can consume a moderate amount of caffeine (eg a few cups of coffee each day) without it affecting their babies. Newborn babies however can be particularly sensitive to caffeine. This is because it can take a newborn baby a long time (ie 160 hours) to process caffeine. By 6 months, however, it may take a baby only 23 hours to process caffeine.1Caffeine content in common drinks and food

Read more on Australian Breastfeeding Association website

Caffeine during pregnancy

Impact of drinking caffeine during pregnancy, recommended daily amounts of caffeine, caffeine amounts in food and drinks, plus links to trusted resources.

Read more on Pregnancy, Birth & Baby website

Caffeine consumption while breastfeeding | myVMC

Breastfeeding womencan safely consume caffeine, but they should consume less caffeine than non-lactating women, to protect the health of their breastfed infant.

Read more on myVMC – Virtual Medical Centre website

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