Two Drinks a Day Risk: What 1 in 25 Really Means

You pour a glass of red when dinner goes on the stove and a second one when the plates come off the table. Two glasses, most nights. It feels like the textbook definition of moderate, and for years the official advice said so.

A new modeling study puts a number on two drinks a day risk: roughly a 1 in 25 lifetime chance of dying from an alcohol-caused condition for men who average 14 drinks a week. That figure travelled fast in October, and it is easy to misread in both directions. This guide turns it into something you can check against your own glass, your own week and your own bank statement.

Where the 1 in 25 Figure Comes From

The number comes from the Alcohol Intake and Health Study, published in June in the Journal of Studies on Alcohol and Drugs and covered again in October by ScienceDaily. The study was originally commissioned to inform the US Dietary Guidelines. Its lead researchers include Kevin Shield of the University of Toronto and Timothy Naimi of the University of Victoria.

It is not a new trial. The team reviewed more than 7,200 scientific articles on alcohol-related disease and injury, picked the strongest risk estimates for each condition, and applied them to national US health, census and death data. A statistical model then estimated how many people at each drinking level would die of an alcohol-caused condition over a lifetime.

Two design choices matter. The comparison group was people who never drank, and former drinkers were excluded, according to STAT News. That avoids a known trap: people who quit because they got sick can make abstainers look less healthy than they are.

What counts as an alcohol-related death

The model only added up conditions that alcohol is already known to cause. Those include:

• Cancers of the mouth, throat, esophagus, liver and colon, plus breast cancer in women
• Liver disease, including cirrhosis
• Injuries, such as falls and crashes
• Cardiovascular disease, where heavier or binge drinking raises risk

Pancreatic cancer was left out because the evidence is still developing.

How Two Drinks a Day Risk Compares With One or Three

The striking part is the shape of the curve. Risk stays low for a while, then accelerates.

• About one drink a day (around 7 a week): lifetime risk of an alcohol-caused death near 1 in 1,000. The authors describe up to 7 drinks a week as minimally elevated risk for most conditions.
• Above 8.5 drinks a week: risk passes 1 in 100 for both men and women.
• 14 drinks a week (two a day): about 1 in 25 for men. An earlier draft of the same work put this at 39.3 deaths per 1,000 male lifetimes.

Read that sequence again. Going from 7 to 14 drinks a week doubles the alcohol but multiplies the estimated lifetime risk roughly 40 times. That is why the authors argue the data support no more than one drink a day for both sexes.

What about three a day? The published coverage does not give a single lifetime figure for 21 drinks a week, so we will not invent one. What the model does say is that risk keeps rising with amount. The authors also flag that drinking more than one drink in a single sitting carries its own added risks.

Men versus women

The headline 1 in 25 figure was reported for men. For women, the thresholds for crossing 1 in 1,000 and 1 in 100 sit at almost the same weekly amounts, so the old rule of "two for men, one for women" does not map neatly onto these results. STAT News also reported that at two drinks a day, women's relative risk of dying from severe liver disease was more than twice that of men.

What a Standard Drink Actually Is

Every number above is in standard drinks, not glasses. That gap is where most people lose count.

According to the National Institute on Alcohol Abuse and Alcoholism, one US standard drink contains about 14 grams of pure alcohol. That equals:

• 12 ounces of regular beer at 5% alcohol
• 5 ounces (about 148 ml) of wine at 12% alcohol
• 1.5 ounces of 80-proof spirits

Restaurant and home pours rarely match. A 175 ml glass of 13% wine holds about 18 grams of alcohol, or 1.3 standard drinks. A generous 250 ml pour of the same wine is about 1.8 drinks. A 16 ounce can of strong craft beer can count as two or more.

Strength matters too. For an exact figure, multiply millilitres by the alcohol percentage and by 0.789 to get grams, then divide by 14.

Worked Example: Two Glasses of Wine a Night

Take a common pattern: two 175 ml glasses of 13% wine, every night. Here is what it adds up to.

Standard drinks per week

1. One glass: 175 ml x 0.13 x 0.789 = about 18 grams of alcohol
2. Per glass in standard drinks: 18 / 14 = about 1.28
3. Per night: 2 glasses x 1.28 = about 2.6 drinks
4. Per week: 2.6 x 7 = about 18 standard drinks

Most people would describe this as "two drinks a night." On paper it is closer to 2.6. That places this reader above the 14-drink level tied to the 1 in 25 estimate, not at it.

What it costs per year

Two 175 ml glasses use 350 ml a night. Over a year that is 127,750 ml, or about 170 standard 750 ml bottles.

• At $12 a bottle: about $2,044 a year
• At $20 a bottle: about $3,407 a year

Like streaming services, a nightly bottle habit is a recurring charge that hides in small pieces. People routinely underestimate how much small recurring costs add up, and wine bought in the weekly shop blends into the grocery total.

The swap scenario

Say you cut to one 175 ml glass a night. Weekly intake drops to about 9 standard drinks, and your wine spend roughly halves, saving about $1,022 a year at $12 a bottle. Halving to one glass still leaves you just above the 8.5-drink line, so dropping a few nights a week takes you further.

Invested instead, $2,044 a year for 10 years at an assumed 7% annual return grows to about $28,240. You can test your own numbers in our compound interest calculator.

What the Study Does Not Show

A population estimate is not a personal forecast. Shield said as much: individual risk depends on genetics, other health habits and drinking patterns. Someone who has 14 drinks spread evenly across a week carries a different risk from someone who has all 14 on Saturday.

It is also a model built from observational studies. It cannot prove that a specific amount will cause a specific death, and its results depend on which risk estimates the experts chose.

The study has vocal critics. A House Oversight Committee report called it "irretrievably flawed," and the alcohol industry questioned its methods. A separate National Academies review found moderate drinking associated with a lower risk of death from any cause, and that review, not this one, informed the new federal guidelines. HHS has also said the published version was not cleared by SAMHSA, the agency that originally funded the work.

What Official Guidance Says Now

The advice you hear depends on who is talking:

• US Dietary Guidelines: the edition released in January dropped the old numeric limits of two drinks a day for men and one for women. It now tells people to consume less alcohol for better health, without a number.
• US Surgeon General: a January 2025 advisory named alcohol the third leading preventable cause of cancer in the US, after tobacco and obesity, linked to about 100,000 cancer cases and 20,000 cancer deaths a year. It called for cancer warnings on labels.
• World Health Organization: a January 2023 statement in The Lancet Public Health said no level of alcohol consumption is safe for health.

They disagree on numbers but agree on direction: less carries lower risk, and the risk of cancer starts rising before most people think of themselves as heavy drinkers.

A Practical Way to Use This

You need an honest count, not a pledge.

1. Measure one pour. Pour your usual glass into a measuring jug once. Most people are surprised.
2. Check the label. Note the alcohol percentage and run the grams math above.
3. Count a normal week in standard drinks, not glasses.
4. Place yourself on the curve: around 7, above 8.5, or at 14 and beyond.
5. Look at the bill. Add up a month of wine, beer or bar spending, since drinks bought with the weekly shop hide inside the total the same way small items make your grocery bill outpaces headline inflation.

Then decide with real numbers in front of you. Some people will keep their two glasses and accept the tradeoff. Others will prefer one smaller pour, or three dry nights a week.

Frequently Asked Questions

Is two drinks a day too much?

Under the Alcohol Intake and Health Study, two standard drinks a day (14 a week) was linked to about a 1 in 25 lifetime risk of alcohol-caused death for men. The authors say their data support no more than one drink a day for both men and women. Current US Dietary Guidelines no longer set a number and simply advise drinking less.

How many standard drinks are in a glass of wine?

A US standard drink is 14 grams of alcohol, equal to a 5 ounce (148 ml) pour of 12% wine. A 175 ml glass of 13% wine is about 1.3 standard drinks, and a 250 ml pour is close to two.

Is one drink a day safe?

The study put lifetime risk of alcohol-caused death near 1 in 1,000 at about one drink a day, which the authors call minimally elevated for most conditions. One drink a day was still linked to higher risk of some cancers and injuries, and the WHO says no level is risk free.

Does red wine protect your heart?

Low intake may be linked to slightly lower risk of ischemic heart disease and stroke, but in this study those associations were not statistically significant and were outweighed by other risks. The researchers found no net protective effect at any drinking level.

The Bottom Line

The 1 in 25 figure applies to a specific amount, 14 standard drinks a week, and a large share of people who say "two a night" are actually drinking more than that. Count in grams, not glasses. Once you know your real weekly total and your real yearly spend, you can make the call that fits your life.

Note: This article is for general information and is not medical advice. Talk to your doctor before changing your diet, medication or treatment.