fbpx

Make a tax-deductible donation today

Alcohol and cancer

Alcohol is a cause of at least seven types of cancer

Alcohol and cancer

Alcohol is a cancer-causing substance that is linked to cancer in at least seven different sites of the body.

Alcohol is a carcinogen

Alcohol is responsible for around 5,000 new cases of cancer in Australia each year. 

Alcohol is classified as a Group 1 carcinogen alongside tobacco and asbestos, which means each of these substances is known to cause cancer in humans.

Reducing your alcohol use reduces your risk of cancer.

Facts at a glance: Alcohol and cancer

Reducing your alcohol use reduces your risk of cancer.

What cancers can alcohol cause?

Alcohol is a cause of cancer in at least seven sites in the body:

  • Mouth 
  • Pharynx (throat)  
  • Larynx (voice box) 
  • Oesophagus 
  • Liver 
  • Bowel 
  • Breast 

How alcohol causes cancer

Here are five ways alcohol increases your risk of cancer: 

  • Alcohol influences hormone levels – Alcohol can influence levels of oestrogen and other hormones, increasing the risk of breast cancer.
  • Alcohol damages your cells – When alcohol breaks down it becomes a toxic chemical known as acetaldehyde. It can damage your DNA and cause abnormal cell growth.
  • Alcohol reduces absorption of essential nutrients – Alcohol reduces the amount of folate your body can absorb. This impacts cell structures, interfere with the body’s ability to repair DNA, and increases the likelihood of alcohol-related cancers.
  • Alcohol and other cancer-causing substances – Alcohol can cause your body’s cells to absorb higher levels of other carcinogens, such as tobacco. 
  • Alcohol contributes to weight gain – Alcohol is high in calories and can contribute to weight gain, which is a risk factor for many cancers.

Kathryn shares her breast cancer story

Throughout her early adulthood, Kathryn was a binge drinker – so much so, she says, that it felt like part of her identity. Later, as a mum of three sons, a ‘morning after’ moment on a family holiday prompted a decision to take a break from alcohol. 

It was soon after this that Kathryn was diagnosed with breast cancer. 

Kathryn started researching information on her diagnosis. Only then did she learn about the direct links between alcohol consumption and breast cancer.   

Watch Kathryn’s story on how she gave up alcohol for her health. 

Reducing your risk of cancer

There is no safe level of alcohol when it comes to cancer – even drinking at low levels increases your risk. But the more alcohol you drink over time, the higher your risk of cancer. 

This means you can reduce your risk of cancer by reducing the amount of alcohol you drink. 

The Australian Alcohol Guidelines recommend having no more than 10 standard alcoholic drinks in a week to reduce your risk of cancer and other diseases, and no more than 4 standard drinks on any one day to reduce your risk of injuries or accidents. 

The less you drink, the lower your risk of cancer, other diseases and injury. 

Learn more about the Australian Alcohol Guidelines and the evidence behind them. 

Explore ways to reduce your risk by reducing the amount of alcohol you drink. 

Need advice or support?

To find a local GP, you can call 1800 022 222 or visit healthdirect.gov.au. To find a local psychologist, visit psychology.org.au/find-a-psychologist. If you need other support to reduce your drinking, you can contact the National Alcohol and Other Drug Hotline on 1800 250 015.

Join our community

Will you join the community taking action on alcohol?

Join our community

Fill out the form below to receive regular updates & resources.

Join our community

Get updates & resources straight to your inbox