The question of whether any alcohol consumption is truly “safe” has long been debated. Now, a large-scale study is adding nuance to the conversation, suggesting that, for those who drink moderately, the type of alcohol may matter. Researchers found that whereas high alcohol intake universally increases the risk of death, moderate wine consumption was associated with a lower risk of cardiovascular disease compared to beer, cider, or spirits.
The findings, presented at the upcoming annual conference of the American College of Cardiology (ACC.26) in New Orleans, Louisiana, from March 28-30, are based on an analysis of data from over 340,000 adults participating in the UK Biobank study between 2006 and 2022. This research doesn’t provide a green light to start drinking, but it does prompt a closer look at how different alcoholic beverages impact health, and challenges the notion that alcohol’s effects are solely determined by quantity.
The Clear Risks of Heavy Drinking
The study unequivocally confirms that heavy alcohol consumption is detrimental to health. Participants who drank heavily – defined as more than 40 grams of alcohol per day for men (roughly three or more standard drinks) and more than 20 grams per day for women (about 1.5 or more standard drinks) – faced a 24% higher risk of all-cause mortality compared to those who abstained or drank only occasionally. This increased risk extended to cancer, with a 36% increase in cancer-related deaths, and cardiovascular disease, with a 14% increase.
These findings align with decades of public health warnings about the dangers of excessive alcohol use. The Centers for Disease Control and Prevention (CDC) consistently links heavy drinking to a range of health problems, including liver disease, heart disease, and certain types of cancer. The CDC defines excessive drinking as binge drinking, heavy drinking, or any alcohol use by pregnant women or people under the age of 21.
Wine’s Potential, Within Limits
The more surprising aspect of the study emerged when researchers examined the effects of different types of alcohol at low to moderate consumption levels. Participants were categorized into four groups based on their alcohol intake: non-consumers/occasional drinkers (less than 20 grams of alcohol per week, or about 1.5 standard drinks); low consumers (20-20 grams per day for men, 20-10 grams per day for women); moderate consumers (20-40 grams per day for men, 10-20 grams per day for women); and high consumers (over 40 grams per day for men, over 20 grams per day for women).
Among those with low to moderate consumption, the researchers observed a significant difference based on beverage type. Spirits, beer, and cider were all associated with a higher risk of death compared to wine. Specifically, moderate wine drinkers showed a 21% lower risk of death from cardiovascular disease compared to those who never drank alcohol or only drank occasionally. Conversely, even low consumption of spirits, beer, or cider was linked to a 9% higher risk of cardiovascular death compared to abstainers.
“Our results provide further evidence that moderate alcohol consumption may have a protective effect on cardiovascular health, but that this effect may be specific to wine,” explained Zhangling Chen, the study’s lead author, in a press release from the American College of Cardiology. “These findings could help refine recommendations, highlighting that the risks to health depend not only on the quantity of alcohol consumed but also on the type of beverage.”
What Might Explain the Difference?
The reasons behind wine’s potential cardiovascular benefits are complex and not fully understood. Red wine, in particular, contains polyphenols, such as resveratrol, which are antioxidants that have been linked to improved heart health. These compounds may help protect blood vessels, reduce inflammation, and prevent blood clots. Although, it’s vital to note that resveratrol is also found in other foods like grapes and berries.
It’s also possible that the way wine is typically consumed – often with meals and in a more leisurely manner – contributes to its potential benefits. The study did not account for dietary patterns or lifestyle factors that might influence the results.
Current Recommendations Remain the Same
Despite these intriguing findings, health officials emphasize that these results do not encourage people to start drinking alcohol. The potential risks of alcohol consumption, even in moderation, still outweigh the benefits for many individuals. Santé publique France continues to recommend limiting alcohol intake to no more than two drinks per day for men and one drink per day for women.
For those who do choose to drink, the study suggests that wine, consumed in moderation, may be the “least worst” option. However, it’s crucial to remember that individual risk factors, such as family history of heart disease or liver problems, should be considered.
The research team plans to continue investigating the relationship between alcohol consumption and health outcomes, with a focus on identifying the specific mechanisms that contribute to the observed differences between beverages. Further studies are needed to confirm these findings and to determine whether the benefits of moderate wine consumption can be achieved through other means, such as a diet rich in polyphenols.
Disclaimer: This article provides information for general knowledge and informational purposes only, and does not constitute medical advice. It is essential to consult with a qualified healthcare professional for any health concerns or before making any decisions related to your health or treatment.
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