Responsible Drinking Guide

If you choose to drink, understanding how to do so more safely can reduce the risk of harm to yourself and others. This guide provides practical, evidence-based strategies for harm reduction.

Know What a Standard Drink Is

Many people underestimate how much they drink because they don't know what counts as one "standard drink." Definitions vary by country, but in the United States, one standard drink contains approximately 14 grams (0.6 fluid ounces) of pure alcohol:

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Regular Beer

12 oz (355 ml) at 5% ABV

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Wine

5 oz (148 ml) at 12% ABV

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Spirits

1.5 oz (44 ml) at 40% ABV

Be aware that many drinks served at bars, restaurants, and at home are larger than one standard drink. A large glass of wine may be two standard drinks. A strong cocktail can contain two or three. Craft beers and high-ABV drinks can represent significantly more alcohol than expected.

Low-Risk Drinking Guidelines

Health organizations around the world publish guidelines for lower-risk alcohol consumption. While no level of alcohol is completely risk-free, staying within these limits significantly reduces health risks:

US (NIAAA / Dietary Guidelines)

Men: Up to 2 standard drinks per day

Women: Up to 1 standard drink per day

UK (NHS)

No more than 14 units per week for both men and women

Spread over 3+ days with alcohol-free days

Australia (NHMRC)

No more than 10 standard drinks per week

No more than 4 standard drinks on any single occasion

Canada (CCSA 2023)

0 drinks: No risk

1–2 drinks/week: Low risk

3–6 drinks/week: Moderate risk

Binge drinking is defined as consuming 5 or more drinks (men) or 4 or more drinks (women) within about 2 hours. Binge drinking poses significant acute health risks even in otherwise moderate drinkers.

Harm Reduction Strategies

Before Drinking

  • •Eat a substantial meal before drinking. Food slows alcohol absorption and reduces peak BAC.
  • •Set a limit for yourself before you start and stick to it. Use our BAC calculator to understand how many drinks will keep you within your desired range.
  • •Plan your transportation home in advance. Designate a sober driver, book a taxi, or arrange a ride-share.
  • •Check your medications for alcohol interactions. Many common medications (including antihistamines, antidepressants, pain relievers, and antibiotics) can interact dangerously with alcohol.

While Drinking

  • •Pace yourself — no more than one standard drink per hour. This roughly matches your liver's metabolic rate.
  • •Alternate alcoholic drinks with water or non-alcoholic beverages. This slows consumption and helps prevent dehydration.
  • •Choose lower-ABV drinks when possible. A light beer (3–4% ABV) delivers less alcohol per serving than a craft IPA (6–9% ABV).
  • •Avoid drinking games and rounds that pressure rapid consumption.
  • •Never leave your drink unattended and do not accept drinks from strangers.

After Drinking

  • •Allow enough time for your BAC to return to zero before driving. Remember: you eliminate roughly 0.015% BAC per hour.
  • •Drink water and eat food to help with recovery, though neither speeds up alcohol elimination.
  • •Be aware that you can still be impaired the morning after heavy drinking. "Morning after" BAC levels can still be above the legal limit.

When You Should Not Drink at All

Avoid alcohol entirely if you:

  • •Are under the legal drinking age
  • •Are pregnant or trying to become pregnant
  • •Are taking medications that interact with alcohol
  • •Have a medical condition worsened by alcohol (liver disease, pancreatitis, certain heart conditions)
  • •Are planning to drive, operate machinery, or perform tasks requiring full alertness
  • •Are in recovery from alcohol use disorder

Recognizing Alcohol Poisoning — A Medical Emergency

Alcohol poisoning is a life-threatening condition that requires immediate medical attention. Call emergency services immediately if someone shows any of these signs:

  • ⚠Unconscious or semi-conscious and cannot be awakened
  • ⚠Slow or irregular breathing (fewer than 8 breaths per minute)
  • ⚠Vomiting while unconscious or semi-conscious
  • ⚠Cold, clammy, pale, or bluish skin
  • ⚠Seizures

What to do while waiting for help:

  1. Turn the person on their side (recovery position) to prevent choking on vomit
  2. Stay with them — do not leave them alone
  3. Keep them warm with a blanket or coat
  4. Do not give them coffee, food, or more alcohol
  5. Do not try to make them vomit or put them in a cold shower

When Drinking Becomes a Problem

If you're concerned about your drinking or someone else's, there are signs that alcohol use may be becoming problematic:

  • •Drinking more or longer than you intended
  • •Unsuccessful attempts to cut down or control drinking
  • •Spending a lot of time drinking or recovering from drinking
  • •Neglecting responsibilities at work, school, or home
  • •Continuing to drink despite relationship or health problems
  • •Needing more alcohol to feel the same effects (tolerance)
  • •Experiencing withdrawal symptoms when not drinking (anxiety, shaking, sweating, nausea)

If any of these apply, help is available. Reach out to:

SAMHSA National Helpline (US): 1-800-662-4357 — Free, confidential, 24/7

Drinkline (UK): 0300 123 1110 — Weekdays 9am–8pm, weekends 11am–4pm

Alcoholics Anonymous: Find AA meetings and support resources

Alcohol and Driving

Impaired driving is one of the leading preventable causes of death worldwide. Even small amounts of alcohol can impair driving ability:

  • •At 0.02% BAC: Decline in visual functions and ability to multitask
  • •At 0.05% BAC: Reduced coordination, difficulty steering, and reduced response to emergency situations
  • •At 0.08% BAC: Poor muscle coordination, impaired judgment, and reduced ability to detect danger
  • •At 0.10% BAC: Clear deterioration of reaction time and control

The safest option is always to not drive after any amount of alcohol. Use a designated driver, taxi, ride-share service, or public transportation.

Important Disclaimer

This guide is for educational purposes only and is not a substitute for professional medical advice. If you are struggling with alcohol use, please contact a healthcare provider or one of the helplines listed above. In an emergency, call your local emergency number immediately.

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