Is moderate drinking good for the heart?

We don't know yet. Older studies link light drinking to fewer heart problems, but stricter and genetic studies find no real benefit, and alcohol raises cancer risk.

Who it's for

No one; no group has a clear heart benefit from drinking.

What to expect

Any benefit is small or absent in careful studies.

Watch out for

Cancer risk starts with the first drink and rises with more.

What guidelines say

The American Heart Association says most research is observationalobservational Studies that watch what happens to people rather than assigning a treatment. They can show links, not cause and effect. and prone to bias. It sees no risk to possible risk reduction at up to 1 to 2 drinks a day, and says it remains unknown whether drinking is part of a healthy lifestyle6Guideline · 2025Alcohol Use and Cardiovascular Disease: A Scientific Statement From the American Heart Association.In stark contrast, heavier alcohol consumption such as binge drinking or consuming on average ≥3 drinks a day is consistently associated with worse outcomes in every cardiovascular disease entity studied. Considering the level of evidence, it remains unknown whether drinking is part of a healthy lifestyle and…Circulation. WHO Europe says no level of alcohol is safe, and no studies show heart benefits outweigh the cancer risk at the same levels1Guideline · 2023No level of alcohol consumption is safe for our healthAbout half of alcohol-attributable cancers in the WHO European Region occur in people who are not heavy drinkers, and no studies show that the possible benefits of light and moderate drinking for cardiovascular disease and type 2 diabetes outweigh the cancer risk at the same levels of drinking.World Health Organization, Regional Office for Europe. The US Surgeon General links alcohol to at least seven cancers2Guideline · 2025Alcohol and Cancer Risk (Surgeon General's Advisory)Alcohol consumption is the third leading preventable cause of cancer in the United States, after tobacco and obesity.Office of the US Surgeon General.

What the studies show

• A review of 84 studies that followed people over time found drinkers had about 25% lower relative riskrelative risk How much more or less likely something is in one group than another, as a ratio. A big relative change can still be a small change for any one person. of death from heart disease than non-drinkers. Stroke risk was not clearly different5Meta-analysis · 2011Association of alcohol consumption with selected cardiovascular disease outcomes: a systematic review and meta-analysis.Light to moderate alcohol consumption is associated with a reduced risk of multiple cardiovascular outcomes.BMJ. These figures compare groups, so one person's gain depends on their starting risk.
• A review of 87 studies (nearly 4 million people) found the same benefit for light drinkers until it corrected for former drinkers and sick people counted as abstainers. After that, the benefit disappeared. Higher-quality studies also found none4Meta-analysis · 2016 · 3,998,626 peopleDo "Moderate" Drinkers Have Reduced Mortality Risk? A Systematic Review and Meta-Analysis of Alcohol Consumption and All-Cause Mortality.Estimates of mortality risk from alcohol are significantly altered by study design and characteristics. Meta-analyses adjusting for these factors find that low-volume alcohol consumption has no net mortality benefit compared with lifetime abstention or occasional drinking. These findings have implications for public…J Stud Alcohol Drugs.
• A pooled analysis of nearly 600,000 current drinkers found lower heart attack risk with more alcohol, but higher risk of stroke, heart failure, high blood pressure and aortic aneurysm. Lowest death risk was at about 100 g a week or less, roughly 7 US drinks3Meta-analysis · 2018Risk thresholds for alcohol consumption: combined analysis of individual-participant data for 599 912 current drinkers in 83 prospective studies.In current drinkers of alcohol in high-income countries, the threshold for lowest risk of all-cause mortality was about 100 g/week. For cardiovascular disease subtypes other than myocardial infarction, there were no clear risk thresholds below which lower alcohol consumption stopped being associated with lower disease…Lancet.
• A genetic study of 371,463 UK adults linked all amounts of alcohol to higher risk of high blood pressure and heart disease. Light drinkers' apparent benefit was partly explained by healthier lifestyles9Observational study · 2022 · 708 peopleAssociation of Habitual Alcohol Intake With Risk of Cardiovascular Disease.In this cohort study, coincident, favorable lifestyle factors attenuated the observational benefits of modest alcohol intake. Genetic epidemiology suggested that alcohol consumption of all amounts was associated with increased cardiovascular risk, but marked risk differences exist across levels of intake, including…JAMA Netw Open. A review of 24 genetic studies mostly found no link, and said the methods were too uneven to settle the question10Observational study · 2022Alcohol consumption in relation to cardiovascular diseases and mortality: a systematic review of Mendelian randomization studies.Considering the heterogeneity in methodological quality of the included MR studies, it is not yet possible to draw conclusions on the causal role of moderate alcohol consumption on cardiometabolic health. As MR is a rapidly evolving field, we expect that future MR studies, especially with recent developments regarding…Eur J Epidemiol.
• In people who already had heart disease (48,423 people), light drinking was linked to lower risk than not drinking. The benefit shrank when former drinkers were removed from the comparison group7Meta-analysis · 2021 · 48,423 peopleAssociation of alcohol consumption with morbidity and mortality in patients with cardiovascular disease: original data and meta-analysis of 48,423 men and women.For secondary prevention of CVD, current drinkers may not need to stop drinking. However, they should be informed that the lowest risk of mortality and having another cardiovascular event is likely to be associated with lower levels of drinking, that is up to approximately 105g (or equivalent to 13 UK units, with one…BMC Med.
• A Spanish study of people on a Mediterranean diet linked wine to lower death rates, but the analyses least affected by abstainer bias were not significant12Randomized trial · 2026 · 23,133 peopleWine consumption, Mediterranean diet, and cardiovascular risk in two Spanish cohorts.In PREDIMED, moderate wine consumption, as part of the MedDiet, appeared to be associated with lower mortality and CVD risk. Some non-significant associations and interactions advise caution in interpretation of these findings.Eur Heart J.

Key studies

Safety

Alcohol is a Group 1 carcinogen, and risk begins with the first drink1Guideline · 2023No level of alcohol consumption is safe for our healthAbout half of alcohol-attributable cancers in the WHO European Region occur in people who are not heavy drinkers, and no studies show that the possible benefits of light and moderate drinking for cardiovascular disease and type 2 diabetes outweigh the cancer risk at the same levels of drinking.World Health Organization, Regional Office for Europe. Heavy drinking (3 or more drinks a day) is consistently tied to worse heart outcomes6Guideline · 2025Alcohol Use and Cardiovascular Disease: A Scientific Statement From the American Heart Association.In stark contrast, heavier alcohol consumption such as binge drinking or consuming on average ≥3 drinks a day is consistently associated with worse outcomes in every cardiovascular disease entity studied. Considering the level of evidence, it remains unknown whether drinking is part of a healthy lifestyle and…Circulation. Pregnant women, people recovering from alcohol use disorder and people on interacting medications should avoid it13Guideline · 2026Dietary Guidelines for Americans, 2025–2030Limit alcoholic beverages: consume less alcohol for better overall health. People who should avoid alcohol completely include pregnant women, people recovering from alcohol use disorder or unable to control how much they drink, and people taking medications or with medical conditions that can interact with alcohol. …US Departments of Agriculture and Health and Human Services.

What we don't know

• Whether light drinking itself protects the heart; no randomized trialrandomized trial People are assigned by chance to the treatment or a comparison, so a difference in results is likely caused by the treatment itself. has tested it6Guideline · 2025Alcohol Use and Cardiovascular Disease: A Scientific Statement From the American Heart Association.In stark contrast, heavier alcohol consumption such as binge drinking or consuming on average ≥3 drinks a day is consistently associated with worse outcomes in every cardiovascular disease entity studied. Considering the level of evidence, it remains unknown whether drinking is part of a healthy lifestyle and…Circulation.
• How to weigh a possible small heart effect against cancer risk for one person.