STOMACH-churning video has emerged showing an ex-smoker coughing up globs of black tar into his bathroom sink.

The footage, filmed in Temecula in the US state of California, was posted on video sharing site LiveLeak.

2 Shocking footage shows the man coughing up the dark-coloured goo Credit: LiveLeak

In it, the man can be heard violently coughing as his lungs seemingly try to clear a blockage.

He then repeatedly spits the pitch-black goo into the sink – highlighting it against the bright white background.

Towards the end, the camera zooms in on the dark-coloured slime.

As it does, the man can be heard to say: “That’s from smoking.”

The person who posted the video online claimed he had been smoking cigarettes and marijuana every single day for the last eight years.

He said he had recently found the courage to give up both – but had been coughing up the black stuff ever since.

Related stories GATEWAY TO FAGS Teenagers who use e-cigarettes 'are more likely to become heavy cigarette smokers' SURGERY BAN Smokers and obese patients to be denied surgery until they make a change under new cost cutting measures WOULD YOU QUIT FOR CASH? One in three smokers 'stub out their habit in return for compensation' Video PET'S NEW WHEEZE Hilarious parrot leaves mum spluttering after mimicking her smoker’s cough GIVE IT UP THIS OCTOBER More than 14 MILLION Brits have quit smoking - and now ex-smokers outnumber those who still light up Exclusive CIGS TAX FURY Smokers pay more for cigarettes in Britain than anywhere else in Europe except Norway

Many people commented on the video, congratulating the man on quitting and saying they too experienced the same phenomenon when they kicked the habit.

In fact, developing a heavy cough is a relatively common short-term side effect of giving up smoking.

The cough is a sign that an ex-smoker’s lungs are beginning to heal, as they start to clear out all the toxins.

2 The man who uploaded the clip claims to have been smoking for the last eight years Credit: LiveLeak

The benefits of quitting smoking are well-documented, and the NHS strongly encourages smokers to stop.

However, experts warned last week that services helping to those trying to quit in the UK were under threat due to budget cuts.

A study by Cancer Research UK and the campaign group Action on Smoking and Health found six in ten local authorities in England were forced to reduce their budgets last year.

We pay for your stories! Do you have a story for The Sun Online news team? Email us at tips@the-sun.co.uk or call 0207 782 4368