De-addiction

How much alcohol is harmful? Understanding standard drinks

Is one peg a day safe? What counts as heavy drinking? Clear facts about alcohol amounts, risks and the AUDIT self-check.

Dr. Kuldeep Budania, MBBS, MD Psychiatry

Updated 11 October 2026 · 3 min read

Many people believe small amounts are healthy. The WHO states there is no level of drinking that is completely safe for health.

Risk rises with the amount and frequency of drinking.

Key concepts

  • A 'standard drink' contains a fixed amount of pure alcohol, whatever the beverage
  • A large peg or a strong beer can be two or more standard drinks
  • Binge drinking is harmful even if it is only on weekends

Symptoms and signs

  • Needing a drink to relax or sleep
  • Drinking more than planned
  • Missing work or family duties after drinking

Causes

  • Social pressure and celebrations
  • Using alcohol for stress or sleep
  • Tolerance — needing more for the same effect

Risk factors

  • Family history of alcohol problems
  • Depression or anxiety
  • Starting young

Evidence-based management

  • Take the AUDIT self-check to see your risk level
  • Set alcohol-free days and track drinks
  • Brief counselling is effective for risky drinking
  • Medical treatment for dependence

When to seek professional help

  • AUDIT score in the higher-risk range
  • Morning drinking or shaking when you stop
  • Drinking during pregnancy — seek advice

Frequently asked questions

Is red wine good for the heart?

Current evidence does not support drinking for heart health; the risks outweigh any possible benefit.

I only drink on weekends. Is that okay?

It depends on the amount. Drinking a lot in one sitting carries risks such as accidents, violence and heart rhythm problems.

Medical references

Guidelines and official sources used for this article.

  1. Alcohol — fact sheet. World Health Organization.
  2. Alcohol-use disorders: diagnosis, assessment and management of harmful drinking and alcohol dependence (CG115). NICE, UK, 2011.
Author
Dr. Kuldeep Budania, MBBS, MD Psychiatry
Medical reviewer
Dr. Kuldeep Budania, MD Psychiatry
Last reviewed

This article is for general information and is not a substitute for personal medical advice.

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