Alcohol and the Heart: A Beginner-Friendly Start

The relationship between drinking and cardiovascular outcomes, and the current UK guideline.

Key takeaways

• UK weekly guideline: 14 units, men and women
• One unit: 10ml of pure alcohol
• Most useful single change: Count units using strength and volume, not number of glasses.
• Commonest mistake: Saving units for the weekend.
• See a doctor if any of the signs under "When to speak to a doctor" below apply to you.

Why bother

The protective effect attributed to light drinking largely disappears in studies that separate lifelong abstainers from former drinkers.

Start here

These two first. Everything else is easier once they are habit.

• Count units using strength and volume, not number of glasses
• Spread drinking across the week and keep drink-free days

Then add these

Next, once the first two have stopped feeling like effort.

• Use smaller glasses and lower-strength options
• Tell your GP honestly how much you drink

The numbers, in one place

Common early mistakes

• Saving units for the weekend
• Assuming red wine is protective
• Drinking at all if pregnant or trying to conceive

Where to go next

• Your Questions About Alcohol and the Heart, Answered
• The Short Guide to Alcohol and the Heart
• Alcohol and the Heart — the reference entry
• Atrial Fibrillation: What the Evidence Actually Says
• Heart Attack Symptoms: What the Evidence Actually Says

When to speak to a doctor

Do not stop suddenly without medical advice if you are physically dependent — withdrawal can cause seizures. See a GP if you regularly exceed 14 units or cannot stop once you start. Seek urgent help for vomiting blood, black tarry stools, yellowing of the skin or eyes, or confusion. Drinkline is 0300 123 1110.

Where this comes from

• UK Chief Medical Officers — Low Risk Drinking Guidelines
• NHS — Alcohol units

How this page was put together

Every figure, recommendation and warning above is taken from the guidance named in Where this comes from. Nothing on this page is inferred, summarised or generalised beyond what those bodies publish: where they give a number, it is their number, and where they are silent, so are we. Pages are rebuilt whenever the underlying record changes. Sign-off by a named clinician, where it has happened, is shown at the top of the page along with the date.

Medical disclaimer

This article is general information, not medical advice. It cannot account for your own history, medication or circumstances. Always speak to a GP, pharmacist or another qualified health professional before making changes that affect your treatment, and never delay seeking medical advice because of something you have read here. In an emergency, call 999.