What counts as risky alcohol consumption?

Alcohol remains one of the most consumed and most socially normalized psychoactive substances. That is exactly why it is useful to know objectively where your own consumption stands.

Alcohol accompanies meals, parties, drinks with colleagues, and moments of relaxation. This familiar place makes it hard to talk about simply, without trivializing or dramatizing it. The goal of this article is not to judge anyone. It is to give clear reference points so that everyone can place their own consumption and decide with full knowledge of the facts.

The standard drink, a common reference unit

Contrary to intuition, it isn't the type of drink that determines the amount of pure alcohol ingested, but the volume served and its strength. A standard drink contains about 10 grams of pure alcohol, whether it's a glass of wine (10 cl / 3.5 fl oz), a beer (25 cl / 8.5 fl oz), or a spirit (3 cl / 1 fl oz): the same amount of alcohol, for very different liquid volumes. It's this equivalence that makes it possible to compare consumption, regardless of the type of drink.

In real life, drinks served rarely match these reference volumes. A glass of wine served at home often contains 15 cl rather than 10, or one and a half standard drinks. A pint of beer (50 cl) contains two. A 50 cl can of strong 8% beer contains more than three. Craft beers, often stronger than standard ones, and cocktails, which sometimes mix several spirits, also easily throw off the count. To calculate precisely, a simple formula exists: multiply the volume in milliliters by the alcohol percentage and by 0.8 (the density of alcohol), then divide by 100. A 75 cl bottle of wine at 13% thus contains about 78 grams of pure alcohol, or nearly 8 standard drinks.

The standard drink isn't the same everywhere. It contains 10 grams in France, but 14 grams in the United States. In the United Kingdom, it's counted in “units” of 8 grams. Keep these differences in mind when reading foreign studies or guidelines: “two drinks” doesn't represent the same amount of alcohol from one country to another.

Very different consumption levels by country

In France, alcohol consumption has fallen sharply since the 1960s. The volume of pure alcohol sold per inhabitant aged 15 and over dropped from 26 liters in 1961 to 9.75 liters in 2024, according to the French Monitoring Centre for Drugs and Addictive Behaviours (OFDT). France nonetheless remains among Europe's highest consumers. This represents about 770 standard drinks per person per year, or more than two a day on average. This average hides large disparities: part of the population drinks little or not at all, while a minority consumes a large share of the alcohol sold. About one adult in five exceeds the recommended consumption guidelines. Alcohol is also responsible for about 41,000 deaths a year in France, making it the second leading cause of preventable death after tobacco.

The decline is driven mainly by the decreasing habit of drinking wine daily with meals, which has become much less common among younger generations. Drinking patterns have changed: people drink less often, but episodes of heavy consumption on a single occasion remain frequent, especially among young adults.

In the United States, alcohol remains the most commonly used psychoactive substance among people aged 12 and older. About one American in five reports at least one episode of binge drinking in the past month. The CDC estimates that alcohol is responsible for about 178,000 deaths a year in the country. Official guidelines have recently evolved. Until 2025, they set a maximum of two drinks a day for men and one for women. The new federal nutrition guidelines, published in January 2026, dropped those numbers in favor of a more general message: drink less alcohol to be healthier.

Globally, the World Health Organization (WHO) estimates that people who drink consume on average about 27 grams of pure alcohol a day, or nearly three French standard drinks. According to its 2024 report, alcohol caused 2.6 million deaths in 2019, or nearly 5% of all deaths. About 400 million people are estimated to live with an alcohol use disorder. Differences between regions are considerable: Europe remains the region of the world that drinks the most, while a majority of adults don't drink at all in many countries in North Africa, the Middle East, and South Asia.

What defines “risky” consumption

Risky consumption isn't limited to established dependence. It also includes habits that, without necessarily creating dependence, expose someone to increased health risks. This can mean regular consumption beyond recommended guidelines, or episodes of binge drinking, that is several drinks on a single occasion, even occasional ones. This is exactly what a tool like the AUDIT-C is designed to assess. It asks about frequency of consumption, usual quantity, and how often heavy-drinking episodes occur, rather than just one of these aspects in isolation.

In France, lower-risk consumption guidelines were defined in 2017 by Santé publique France and the National Cancer Institute. They come down to three points: no more than 10 standard drinks a week, no more than 2 drinks a day, and not drinking every day. These guidelines are the same for women and men. The word “lower” matters: they don't define a risk-free level, but a level where the risk stays low.

Addiction specialists generally distinguish several situations, along a continuum rather than in sealed categories. Low-risk use stays within the guidelines. Risky use exceeds them, without apparent harm for now, but with an increased likelihood of experiencing it. Harmful use already comes with consequences: health problems, accidents, difficulties at work or in a relationship. Dependence is characterized by a loss of control, an overwhelming urge to drink, and sometimes withdrawal symptoms when stopping. A person can move from one category to another in either direction, which is exactly why it matters to spot risky use early: it's the point at which a few changes are often enough to return to the lower-risk zone.

Why set the guidelines so low? Because the risk increases progressively with the amount, with no threshold below which it would be zero. This is particularly true for cancers: alcohol has been classified as a definite carcinogen by the International Agency for Research on Cancer (IARC) since 1988. It notably increases the risk of cancers of the mouth, throat, esophagus, liver, colon, and breast. The main culprit is acetaldehyde, a substance produced by the body as it breaks down alcohol, which damages cell DNA. The idea of a protective effect of light drinking on the heart, long widespread, has been strongly challenged by recent studies. Part of this apparent effect was explained by methodological biases, notably the presence of former drinkers who had become ill within the “non-drinkers” group. That's the meaning of the WHO's 2023 statement that no level of alcohol consumption is safe for health.

Why measure your consumption objectively rather than trust an impression

Perception of one's own alcohol consumption is often biased, in either direction. It can be underestimated out of habit or social normalization, or conversely be a source of disproportionate worry. A structured screening tool like the AUDIT-C makes it possible to move beyond this subjective impression, using a scientifically validated framework.

Several mechanisms explain these biases. People spontaneously compare themselves to those around them: if their friends drink more, their own consumption seems modest, even if it exceeds the guidelines. People also easily forget the drinks “that don't count”: the aperitif, the drink someone offered, the last of the bottle finished off while cooking. And people often think in terms of number of drinks rather than amount of alcohol, when drinks served are generally larger than the standard drink.

The AUDIT-C is the short, three-question version of the AUDIT (Alcohol Use Disorders Identification Test). The AUDIT was developed under the WHO's auspices in the late 1980s and tested in six countries with very different drinking cultures. The short version was validated in 1998 by an American team (Bush et al.) and has since become one of the screening tools recommended in general practice, notably by the French National Authority for Health (HAS). It doesn't make a diagnosis. It flags a level of consumption worth pausing on, much like a thermometer signals a fever without indicating its cause.

A high score is not a moral judgment. It's information, useful for reflecting on one's habits or for talking to a doctor, which can help reduce consumption if one wishes to. In France, the Alcool Info Service helpline also answers, anonymously and free of charge, at 0 980 980 930, every day from 8 am to 2 am. In the United States, the SAMHSA National Helpline (1-800-662-4357) offers similar free, confidential support day and night.

To estimate your own risk level, take the “Is my alcohol consumption risky?” test.