There's a straightforward strategy to reduce alcohol intake, and it actually works.
Researchers have identified an evidence-based approach that helps people drink less: combine a cancer-risk warning with a simple self-check—tracking every drink. This pairing appears to shift behavior more effectively than messages alone or generic guidelines.
In a 2021 study involving nearly 8,000 participants, researchers tested different messages and actions to see what would most successfully reduce drinking. The standout combination was a TV ad that linked alcohol to cancer, paired with a practical tip: count each drink. This duo significantly lowered consumption over six weeks, more so than other tested methods, such as merely asking people to decide on a target number of drinks.
Economist and consumer psychologist Simone Pettigrew from The George Institute for Global Health in Australia underscored an important point: simply telling people that alcohol can cause cancer is helpful, but real impact comes when you also give them a concrete way to reduce risk. Counting drinks supplies that practical step, making the information actionable.
Of course, excessive drinking is linked to a wide range of health issues beyond cancer, including risks to sleep, heart health, digestion, and even dementia, along with an increased chance of premature death. These findings align with broader concerns about alcohol’s contribution to global health burdens.
The study design involved three surveys: initially 7,995 people completed the first survey, 4,588 followed up three weeks later, and 2,687 finished a final survey three weeks after that. Participants were randomly assigned to receive different messages and advertisements about drinking.
In the end, the combination that worked best used a cancer-linked message plus the habit of counting drinks. This approach not only raised awareness but also translated into measurable behavior change during the study period. Other strategies, like setting a target number of drinks, produced some reductions, but they weren’t as consistently impactful.
Pettigrew emphasized that many people aren’t aware that alcohol can be considered a carcinogen. Making this information accessible is crucial. The pairing of cancer information with a clear, practical action—counting drinks—proved to be more effective at reducing overall alcohol intake.
According to the World Health Organization, alcohol contributes to up to 7 percent of premature deaths worldwide. Increasing public awareness about health risks, including cancer, is one piece of the puzzle in addressing this issue. Beyond policy tools such as limiting availability or raising prices, personal choices ultimately drive long-term changes in drinking behavior.
For this study, the participant group was designed to reflect the broad demographics of Australia’s drinking public. While the results may not directly translate to every country or culture, counting drinks could be a viable option for individuals seeking to cut back on alcohol.
As there are limited resources for alcohol-harm reduction campaigns, identifying messages that resonate is critical to maximizing impact. Pettigrew notes the value of this finding for guiding future public health communications.
The research was published in Addictive Behaviors, with an earlier version of this article appearing in June 2021.
