The current guidelines

The UK Chief Medical Officers recommend no more than 14 units of alcohol per week for men and women, spread across three or more days. For context: a standard glass of wine (175ml, 13% ABV) is around 2.3 units; a pint of 5% lager is 2.8 units; a standard pub measure of spirits (25ml, 40% ABV) is 1 unit. Most people who drink over the recommended limits do not classify themselves as having a "problem" — which is one reason public health messaging tends to focus on specific numbers rather than abstract concepts of risk.

Strategies that work

The evidence-based approaches for reducing drinking: (1) Monitoring — keeping a drink diary or using a tracking app raises awareness of actual consumption, which is typically higher than estimated. (2) Environment modification — reducing availability (not keeping alcohol at home), changing routines that trigger drinking, and finding alternative activities for high-risk times. (3) Setting specific goals with implementation intentions ("I will not drink on weekdays; on weekends I will not drink more than 4 units"). (4) Brief motivational interviewing — a structured conversation with a GP or nurse focusing on reasons to change — is effective for hazardous and harmful drinkers and is available from GPs on request.

When professional help is needed

Alcohol dependence (characterised by compulsive use, tolerance, and physical withdrawal when stopping) requires medical input before stopping. Alcohol withdrawal can, in severe cases, cause seizures and be life-threatening — medical supervision and medication are needed for safe detoxification. DRINKAWARE's alcohol checker tool provides a starting-point assessment; GPs can provide referrals to specialist services; SMART Recovery and Alcoholics Anonymous offer peer support programmes.

Dry January and the evidence

Dry January (abstaining from alcohol for January) has accumulated good evidence: a study by the University of Sussex found that six months after Dry January, 40% of participants had reduced their monthly drinking to within lower-risk levels. The psychological mechanism appears to be a "reset" that breaks habitual drinking patterns and builds confidence that life without alcohol is manageable.