Myth or fact

A drink a day is good for you

Short answerNo

By GyroscopeUpdated November 15, 202612 sources

No. The idea came from studies that compared drinkers with “non-drinkers” who were often sick people who had quit. Corrected, a drink a day showed no lower death rate than never drinking, and it still adds cancer risk, higher blood pressure and a higher risk of atrial fibrillation. The best amount for your health is none.

A drink a day was health advice for a generation. Doctors said it, the US guidelines allowed up to one for women and two for men, and a glass of red wine became a prescription people were happy to fill. A lot of people who don’t even like wine started having a glass because they thought it was doing them good. If that’s you, you can stop.

Where the idea came from

Researchers in the 1980s and 1990s kept seeing the same curve: people who drank a little died a bit less often than people who didn’t drink. It looked like a dose of medicine, with a sweet spot at about a drink a day. It seemed to fit, since light drinkers also had fewer heart attacks.

But in 1988 a British team followed 7,735 men and found the curve only appeared in men who were already sick at the start. Sick men had stopped drinking, joined the “non-drinker” group, and died sooner. The drinkers looked healthier because illness was dragging the non-drinkers down.

What fixed it

In 2023 a review of 107 studies and 4.8 million people found that 86 of them had put former or occasional drinkers in the non-drinker group. Compared with people who never drank, drinkers of up to 24 g a day, about 1.7 US drinks, had no lower risk of dying. Above that, risk rose. Why one drink a day looked healthy has the full story, and moderate drinkers live longer goes deeper on the death-rate studies.

Genes settled the heart question. In 261,991 Europeans, people born with a variant that makes them drink less had healthier hearts and 10% lower odds of coronary heart disease, at every level of drinking, including light. If a drink a day protected the heart, the people who drank less would have done worse. They did better.

What a drink a day does

• Cancer. In the US Surgeon General’s 2025 figures, as given by NCI, a drink a day takes women from about 17 to 19 in 100 getting an alcohol-related cancer, and men from 10 to 11. Cancer, with and without
• Blood pressure. About 12 g a day went with a top number 1.25 points higher, in a straight line upward. Blood pressure, with and without
• Heart rhythm. A daily drink of 12 g raised the risk of AFib by 16% in 107,845 people. AFib, with and without
• Brain. Brain scans of 36,678 adults found smaller brains already at an average of one to two UK units a day. Your brain

What the experts say now

The 2018 Global Burden of Disease study found the amount of alcohol that minimized harm was zero. In 2023 the World Health Organization said “there is no safe amount that does not affect health,” and that “the risk to the drinker’s health starts from the first drop.” In January 2026 the US Dietary Guidelines dropped the old one-or-two-a-day limit and replaced it with “Consume less alcohol for better overall health.” And the public moved too: in Gallup’s 2025 poll, 53% of US adults said moderate drinking is bad for your health, and only 6% said it’s good.

What about red wine?

The red wine version had its own star, resveratrol, a compound in grape skins that did impressive things in lab animals. It also had a scandal. In January 2012 the University of Connecticut found one of its resveratrol researchers guilty of 145 counts of fabricating and falsifying data across at least 23 papers. Other scientists said the field didn’t hinge on his work. The bigger problem is simpler: the genetic studies found no heart benefit from drinking at all. Red wine is good for your heart has more.