The clearest result in a study of 340,924 British adults was also the least surprising one: people who drank heavily died at higher rates than people who rarely drank, and it did not matter whether they favored wine, beer, cider or spirits.
Compared with never or occasional drinkers, participants with high alcohol intake were 24% more likely to die from any cause, 36% more likely to die from cancer and 14% more likely to die from cardiovascular disease, according to the analysis presented at the American College of Cardiology's Annual Scientific Session in New Orleans in late March. The findings were circulated again this month through science news outlets. The first author was Ziyue Li of the Second Xiangya Hospital of Central South University in Changsha, China.
That finding is worth separating from the one that generated most of the headlines. At low and moderate intake, the study reported divergence by beverage, with wine associated with lower mortality and spirits, beer and cider associated with higher mortality. Those results rest on a weaker footing, and the researchers themselves framed the question they set out to answer as controversial and confusing.
The Thresholds and Categories the Study Used
Participants enrolled in the UK Biobank between 2006 and 2022 completed a dietary questionnaire at enrollment and were followed for more than 13 years. Researchers sorted them into four intake categories measured in grams of pure alcohol.
For reference, a 12-ounce can of beer, a 5-ounce glass of wine, and a 1.5-ounce shot of spirits each contain roughly 14 grams of pure alcohol. People consuming 20 grams or less per week, about a drink and a half, were classified as never or occasional drinkers and served as the comparison group.
High intake meant more than 40 grams per day for men and more than 20 grams per day for women, roughly three drinks and one and a half drinks respectively. Moderate intake covered more than 20 and up to 40 grams daily for men, and more than 10 and up to 20 grams for women.
Moderate intake was associated only with higher cancer mortality, at a hazard ratio of 1.11. The cancer signal is the most consistent alcohol finding across the research literature, and it appears at lower intake levels than cardiovascular effects do.
The Beverage Comparison and Its Limits
At low to moderate levels, spirits and beer or cider showed associations with higher all-cause and cause-specific mortality, with hazard ratios ranging from 1.07 to 1.83. Moderate wine drinkers, by contrast, had a 21% lower risk of cardiovascular death than people who rarely or never drank. High intake of any beverage type, wine included, was associated with increased mortality.
Several structural problems make the beverage comparison less reliable than the heavy-drinking result. Beverage preference is not randomly distributed. Wine drinkers in large cohorts tend to have higher income and education, better diets, more physical activity and lower smoking rates than spirits drinkers, and statistical adjustment reduces but does not eliminate those differences. The researchers themselves noted that the type of alcohol, how it is consumed, and the associated lifestyle behaviors all contribute to the observed differences.
The comparison group is also a known trouble spot. People who rarely or never drink include some who stopped because of illness, a pattern researchers call the sick quitter problem, which can make light drinkers look healthier by comparison than they are.
Alcohol intake was captured by a single questionnaire at enrollment, which does not account for people who changed their drinking over 13 years of follow-up.
Zhangling Chen, a professor at the Second Xiangya Hospital and the study's senior author, noted a further constraint on interpretation. "These results come from the general population, and in certain high-risk groups, such as people with chronic diseases or cardiovascular conditions, the risks could be even higher," Chen said. Chen reported no relevant financial disclosures.
The Evidence Status of This Research
This is observational research. It identifies associations between drinking patterns and death rates. It cannot establish that any beverage caused any outcome, and the design cannot rule out that the differences reflect the people rather than the drinks.
The work was presented at a scientific meeting rather than published in a peer-reviewed journal at the time of presentation. Conference abstracts undergo review, but that review is less rigorous than full journal peer review, and results sometimes change between presentation and publication.
The broader context matters too. Chen said the team took on the question because the health effects of low to moderate drinking remain highly controversial and confusing, noting that guidelines in the United States, United Kingdom and Canada have traditionally treated moderate drinking as acceptable while the World Health Organization and the American Heart Association have questioned whether any level is safe.
Nothing in this analysis resolves that debate. What it adds is a large dataset in which the heaviest drinkers fared worse on every mortality measure examined, regardless of what they were drinking.
The Established Risks That Sit Behind the Numbers
The mortality figures reflect specific disease pathways that are far better characterized than the beverage comparison.
Alcohol is a recognized carcinogen, associated with cancers of the mouth, throat, esophagus, liver, colon, rectum and breast. Breast cancer risk in particular rises at relatively low intake, which is part of why the cancer signal appeared at moderate levels in this study.
Liver disease follows a dose-related course through fatty liver, alcoholic hepatitis and cirrhosis. Heavy drinking raises blood pressure, contributes to cardiomyopathy and atrial fibrillation, and interacts with medications including acetaminophen, sedatives and some blood thinners. Injuries, falls and motor vehicle crashes account for a meaningful share of alcohol-attributable deaths, particularly in younger adults.
The practical reading of this study is narrow. Anyone drinking at the levels this analysis classified as high has a documented reason to reduce, and beverage choice is not the lever that changes that. Anyone who does not currently drink has no reason to start on the basis of wine findings from observational research. MedicalDaily has covered other nutrition findings that resist simple headlines.
People who drink daily and are considering stopping should speak with a clinician first, because abrupt cessation after sustained heavy use can cause dangerous withdrawal. Anyone concerned about their drinking can reach the SAMHSA National Helpline at 1-800-662-4357, free and confidential, around the clock.
Key Questions Answered
What was the study's strongest finding? That high alcohol intake was associated with higher mortality from all causes, cancer, and cardiovascular disease regardless of beverage type. Heavy drinkers were 24% more likely to die from any cause than never or occasional drinkers.
What counted as heavy drinking? More than 40 grams of pure alcohol per day for men and more than 20 grams per day for women, roughly three drinks and one and a half drinks. A standard beer, glass of wine or shot each contains about 14 grams.
Does this mean wine is safe? No. The wine findings come from observational data in which wine drinkers differ systematically from other drinkers in income, education, diet, exercise and smoking. High intake of any beverage type, including wine, was associated with higher mortality.
Does the study prove alcohol causes these deaths? No. It is observational and identifies associations only. It also relied on a single questionnaire at enrollment, which does not capture changes in drinking over 13 years.
Was it peer reviewed? It was presented at a scientific conference. Conference abstracts receive review, but it is less rigorous than full journal peer review, and results sometimes change before publication.
Why did cancer risk show up at moderate intake? Alcohol is a recognized carcinogen linked to several cancers, and breast cancer risk in particular rises at relatively low intake. The cancer association is one of the more consistent findings in alcohol research.
Should someone who drinks daily just stop? Anyone drinking heavily every day should speak with a clinician before stopping, because abrupt cessation after sustained heavy use can cause dangerous withdrawal. The SAMHSA National Helpline, 1-800-662-4357, is free and confidential.
