Blog · Published 5 November 2026 · By Sober Counter · How we write these posts

Two weeks without alcohol: what changes in your body after 14 days

What two weeks without alcohol does: a fatty liver should be back to normal, the brain starts to recover, the calories add up, and what still needs longer.

Quick answer

After two weeks without alcohol, NHS inform says a fatty liver should return to normal. In a brain scan study of people treated for alcohol dependence, grey matter had already partly recovered after 2 weeks. Withdrawal has usually passed, and you have skipped two weeks of alcohol calories, which can be over 2,000. Some liver blood tests can take up to 6 weeks to return to normal, and sleep often needs longer than two weeks to settle.

Two weeks is when the first changes inside your body have been measured. Here is what has changed by day 14, what is still catching up, and what comes next.

If you drink heavily every day, speak to a doctor or a local alcohol service before you stop. Stopping suddenly when you are dependent on alcohol can be dangerous.

A fatty liver should be back to normal

Drinking too much makes fat build up in the liver. It is the first stage of alcohol-related liver disease, and it rarely causes any symptoms. NHS inform, Scotland's health service, says: "Fatty liver disease is reversible. If you stop drinking alcohol for 2 weeks, your liver should return to normal."

This is the change two weeks is known for. It applies to fatty liver only. The NHS says the scarring of cirrhosis "cannot usually be reversed", and for alcoholic hepatitis or cirrhosis NHS inform recommends never drinking again. Our guide to liver recovery after quitting alcohol explains each stage.

Your liver blood tests may still be catching up

If you have a blood test, not every result will be back to normal at day 14. A 2018 review in a German medical journal gives these times for the usual markers to return to normal after drinking stops or is cut down:

CDT: 2 to 3 weeks
GGT (gamma GT): 2 to 6 weeks
AST and ALT: 2 to 4 weeks
MCV (the size of red blood cells): 8 to 16 weeks

So at two weeks, some results may be normal and others not yet. The same review says these markers can also be raised by other liver conditions and by some medicines, so ask your GP what your results mean.

Your brain has started to recover

In a 2013 study, 49 people being treated for alcohol dependence had brain scans in the first 24 hours of detox and again after 2 weeks without alcohol. At the start they had less grey matter than 55 healthy people. After 2 weeks, the researchers found "a significant albeit partial recovery" of grey matter in several brain regions.

Partial is the key word. Recovery started within a few days, but it varied from one brain region to another, and it was not complete at two weeks. The people studied had been drinking heavily, so this does not tell you exactly what happens if you drank less. Our guide to brain fog after quitting alcohol covers how thinking and memory recover.

Withdrawal is behind you, and energy can pick up

The NHS says withdrawal symptoms "usually last from 3 to 7 days", and Drinkaware says most people feel better within a week. Some symptoms can last for a few months, especially after heavy drinking. Our page on one week without alcohol covers the first seven days.

Drinkaware says that one of the first things you should notice when you stop drinking is "improved energy levels, better sleep and finding it easier to wake up in the morning". It also says many people with low mood caused by alcohol begin to feel better within a few weeks.

You have skipped two weeks of calories

The NHS says alcohol has 7 calories per gram, and gives these figures:

a pint of 5% beer: up to 222 calories
a 175ml glass of 12% wine: up to 158 calories

So two weeks without four pints on a Friday night saves up to 1,776 calories, and two weeks without a glass of wine every evening saves up to 2,212.

Weight is slower. No study has measured weight at two weeks, but after a month without alcohol, moderate to heavy drinkers lost a typical 1.5% of their body weight. Our guide to weight loss after quitting alcohol explains what to expect.

What two weeks does not fix yet

Sleep. Many people still sleep badly at two weeks, especially after heavy drinking. A review of sleep in alcohol dependence found only "limited recovery" of sleep problems in the first 30 days, and another says sleep problems can last for several months. Our guide to insomnia after quitting alcohol explains why and what helps.

Blood pressure and blood sugar. Blood pressure can start to fall within days. In a small 1984 study of men with high blood pressure, it fell within 4 alcohol-free days. But the larger study that measured blood pressure and blood sugar together did so after a month, not two weeks. Our page on 30 days without alcohol has the results.

What comes next

Three weeks: CDT, one of the liver blood markers, should be back to normal by now.
A month: better blood sugar control, systolic blood pressure 6.6% lower and some weight loss, measured in a study of moderate to heavy drinkers.
Six weeks: even GGT, the slowest of the common liver enzymes, should usually be back to normal.

When to get help

Call 999 or go to A&E (or your local emergency number) if, after stopping, you or someone else is shaking visibly, unusually restless or upset, confused, seeing or hearing things that are not there, or has a seizure. The NHS lists these as signs of severe withdrawal.

See a GP if you got withdrawal symptoms, if you are finding it hard to stay off alcohol, or if you want your liver checked. In the UK you can also call NHS 111.

Questions

What happens after 2 weeks without alcohol?

NHS inform says a fatty liver should return to normal after 2 weeks without alcohol. In people treated for alcohol dependence, grey matter in the brain had partly recovered after 2 weeks. Withdrawal has usually passed, and you have skipped two weeks of alcohol calories.

Does your liver recover in 2 weeks without alcohol?

A fatty liver should. NHS inform says: "If you stop drinking alcohol for 2 weeks, your liver should return to normal." Liver blood tests can take longer: GGT can take 2 to 6 weeks. Cirrhosis usually cannot be reversed.

Can you lose weight in 2 weeks without alcohol?

You save the calories straight away, up to 2,212 for a glass of wine every evening. No study has measured weight at two weeks, but after a month moderate to heavy drinkers lost a typical 1.5% of their body weight.

Why do I still feel tired after 2 weeks without alcohol?

Sleep is often the slowest thing to recover. Reviews of sleep in alcohol dependence found only limited recovery in the first 30 days, and sleep problems can last for several months.

Sources

Need support right now?

In the UK, the NHS lists free alcohol support services: NHS alcohol support. In the US, the SAMHSA National Helpline is free, confidential and open all day, every day. Elsewhere, your local health service can point you to help near you.

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