For years, many people believed that moderate alcohol consumption — especially a glass of wine or a couple of drinks a day — carried little risk and might even offer some heart benefits. However, a new analysis is challenging that belief, suggesting that even regular moderate drinking may increase the chances of serious health problems and premature death.

The Alcohol Intake and Health Study, conducted to provide evidence for the 2025–2030 United States Dietary Guidelines, found that consuming around two alcoholic drinks every day — about 14 drinks per week — was associated with a significantly higher risk of alcohol-related diseases and death.

Researchers estimated that at this level of alcohol consumption, the risk of an alcohol-attributable death could rise to approximately 1 in 25 people.

The findings, published in the Journal of Studies on Alcohol and Drugs, add to growing evidence that alcohol-related health risks increase gradually with higher consumption and that alcohol may not provide overall health benefits at any level.

From “Moderate Drinking” to “Lower Is Better”

For decades, research on alcohol mainly focused on the dangers of heavy drinking. But in recent years, scientists have increasingly examined whether smaller amounts of alcohol may also affect long-term health.

Earlier dietary recommendations suggested that adults who drink alcohol should do so in moderation — generally up to one drink per day for women and two drinks per day for men. However, newer health guidance has shifted toward the message that less alcohol is better for health, with increasing recognition that no amount of alcohol may be completely risk-free.

In the latest study, researchers reviewed thousands of scientific studies and selected 16 high-quality studies for detailed analysis. They examined the relationship between alcohol consumption and diseases including various cancers, cardiovascular diseases, and liver disorders.

By combining health risks associated with alcohol use with national mortality data, researchers calculated how the risk of alcohol-related death changes with different levels of drinking.

Risk Rises Sharply After Seven Drinks a Week

The study revealed a clear pattern: the more alcohol people consumed each week, the greater their risk of alcohol-related death.

Researchers found that consuming around seven drinks per week was linked with an estimated lifetime risk of alcohol-related death of at least 1 in 1,000.

However, the risk increased rapidly beyond this level. When weekly consumption crossed approximately 8.5 drinks, the risk rose to around 1 in 100.

At 14 drinks per week — equivalent to two drinks daily — the estimated risk reached 1 in 25.

The analysis also showed increased risks for several specific health conditions. Even about one drink per day was associated with higher chances of death from conditions such as liver cirrhosis, oesophageal cancer, and oral cancer. Among women, breast cancer risk increased as alcohol intake rose.

The End of the “Healthy Alcohol” Myth?

The researchers also examined previous studies that suggested moderate alcohol intake, particularly wine consumption, might protect against heart disease and stroke.

However, their analysis found that any possible cardiovascular benefits were outweighed by the increased risk of alcohol-related diseases, injuries, and other health problems.

Experts say alcohol can damage the body through several biological pathways. When alcohol is broken down, it produces harmful substances such as acetaldehyde and free radicals, which can damage DNA and contribute to cancer development.

Alcohol has also been linked with disruption of liver function, hormonal changes, weakened immune response, and increased risk of cancers including liver and breast cancer.

Experts Advise Cutting Down Alcohol Intake

Ketan Thanki said the findings were consistent with existing knowledge about alcohol’s harmful effects.

He explained that reducing alcohol intake and avoiding frequent drinking can be practical steps toward protecting long-term health.

Cheng-Han Chen said the study reflects a changing understanding of alcohol and heart health.

“For a long time, we thought moderate wine drinking might be beneficial. Many studies have since shown that any amount of alcohol, including red wine, can cause harm,” he said.

Experts emphasize that individual risks vary depending on genetics, age, lifestyle, and existing health conditions. However, the overall message from the latest research is becoming clearer: when it comes to alcohol, reducing intake may significantly lower health risks, and avoiding alcohol altogether may offer the greatest protection.