04/06/2026
One of the main things that I need to do for people with cancer for their treatment plan, is to find and treat ALL the individual root causes for their cancer. This is done through detailed questioning in the initial consultation, pathology testing, and additional information.
One of the things that I ask about for everyone is their alcohol intake, as it is a major risk factor and cause of many types of cancer, in a number of different ways:
1. Alcohol is high in carbohydrates which can feed cancer cells with the main fuel they need for energy and growth
2. High carb intake causes a number of nutrient deficiencies which are needed for optimal immune system function, tissue repair, detoxing and more
3. High carbs also reduces immune system function, which is your body’s main defence against cancer development and progression
4. Alcohol causes inflammation and oxidative damage, which can cause damage to cells and many organs including the liver, blood vessels, brain, pancreas, kidneys, immune system cells, and more, to contribute to cancer development
5. Alcohol is so toxic to the body that the liver will prioritise detoxing of alcohol over any other normal liver function of metabolism, nutrient activation, balancing hormones and neurotransmitters
6. Alcohol affects quality of sleep, which is needed for detoxing, tissue repair, and immune functions, which can in turn contribute to cancer development
7. Alcohol causes weight gain, which changes hormone levels in both males and females to increase oestrogen stimulation of hormone-driven cancers, and increases inflammation
8. And other damage and dysfunction in the body.
Of course, reducing or avoiding alcohol is even better for prevention of cancers!
The Australian government Department of Health guidelines for alcohol intake recommends that adults should not drink more than 10 standard alcoholic drinks per week, and no more than 4 drinks per day (Australian Government Department of Health, 2020).
However, independent studies find that drinking alcohol on average at LESS THAN ONE drink per day, so even at a low intake the risk of development of these 7 types of cancer are increased:
1. Breast cancer
2. Prostate
3. Colore**al
4. Oesophageal
5. Liver
6. Pharynx
7. Pancreas.
Even a moderate (not high) alcohol intake can increase the risk of the following types of cancers:
1. Lip and oral cancer
2. Larynx
3. Stomach.
The cancer risk of all these 10 cancers rose with increasing alcohol intake.
This is why alcohol consumption is just one of many possible causes of cancers.
Stay healthy!
References:
Australian Government Department of Health. (2020). Australian Alcohol Guidelines revised. Retrieved 5th June 2026 from https://www.health.gov.au/news/australian-alcohol-guidelines-revised?language=en
Dai et al., Nature Health, 2026 (Burden of Proof study)
Rumgay et al., Lancet Oncology, 2021 (global attributable burden)
Bagnardi et al., British Journal of Cancer, 2015 (site-specific dose-response)
Wang et al., Alcohol and Alcoholism, 2020 (esophageal)
McNabb et al., International Journal of Cancer, 2020 (colore**al)
Yan et al., European Journal of Epidemiology, 2022 (breast)
Hong et al., Nutrients, 2020 (prostate)