A long-standing belief that a little wine each night can boost wellbeing is being questioned by new research that challenges past assumptions about safe drinking levels.

The new study, published in the Journal of Studies on Alcohol and Drugs, found that the safest level of alcohol consumption is none at all. For adults who choose to drink, the authors recommend limiting intake to a single drink per day.

These conclusions differ from past guidance that often permitted up to two daily drinks for men as a safe limit.

Timothy Naimi, co-author of the study and director of the University of Victoria’s Canadian Institute for Substance Use Research, said in a press release that while current U.S. Dietary Guidelines highlight a “less‑is‑best” approach, they lack a specific framework.

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The team designed the new study to provide clearer guidance across all ranges of drinking.

Researchers examined data on alcohol‑related injuries and diseases and compared those results with national health and demographic statistics. Using statistical models, they assessed how various levels of alcohol use correlated with life expectancy outcomes.

Lead author Kevin Shield, an associate professor at the University of Toronto, said in the same release, “Even low levels of alcohol use come with health risks. And that risk continues to increase the more someone drinks.”

After considering risks for liver disease, stroke, and certain cancers, the researchers concluded that potential health hazards appear to far outweigh any perceived benefits of moderate drinking.

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For those concerned about long‑term wellness, the study suggests that either reducing intake to one drink or giving up alcohol entirely offers the most protective approach.

Fox News senior medical analyst Dr. Marc Siegel commented that the research is an observational Canadian study that uses U.S. census data. He described it as “massive, but still not proof.”

Siegel said he was impressed by the study’s focus on alcohol‑specific mortality and called the findings “convincing” in highlighting that even lower drinking levels are linked to increased mortality risks.

He added that recent work in the field is moving away from the notion that small amounts of alcohol may be beneficial and toward a more “realistic and accurate notion that no amount of alcohol is good.”

According to Siegel, alcohol impacts several systems in the body, acting as a toxin that over time can affect vital organs. He warned that alcohol use is detrimental to the heart, liver, and brain and contributes to inflammation and certain cancers, all of which can heighten mortality risk.

The authors of the study acknowledged that their research is observational and based on self‑reported data, meaning it can show correlations but not direct cause and effect. Self‑reporting can also lead to underestimations or inaccuracies in how much people actually drink.

Despite those limits, the research adds to a growing body of evidence calling for greater caution around alcohol consumption.

It underlines a shift in public health discussions toward stricter moderation and a reconsideration of what truly counts as safe drinking.

At a time when national drinking rates are reportedly hitting new lows, the findings may further influence both policy and personal decisions about alcohol.