Rob Kardashian has checked himself into a 60-day rehab centre that deals with drug and alcohol addiction.
The 28-year-old reality TV star was urged by his friends and family to seek professional help for over a year for his addiction to drinking, marijuana and codeine-packed cough syrup.
"Rob is in good spirits and has a positive mindset. He quietly checked into a beachside Palm Beach County drug and alcohol in-patient rehab center over the weekend," a source said.
Celebrity bodyguard and local resident Mark Behar - a friend of Rob and his sister Kim Kardashian West - went on to say that he spoke to Rob just before he checked himself in, and thinks he'll lose between 10 and 20 lbs within weeks.
Speaking to Gossip Extra, he said: "He told me, 'This is it, I just need to stick with it and do this. His regimen includes weight loss and physical training. Rob will probably lose 10 to 20 pounds within the first few weeks by just being in rehab and daily programs relating to his detox."
His famous family has also taken to social media on several occasions to show their support for Rob.
Season 10 of 'Keeping Up The Kardashians' began in March with an episode showing the family's concern for the ex-boyfriend of Rita Ora.
At the time, Rob's mother Kris Jenner said: "If I don't help him do something drastic, he's going to die.
"He was someone who was very athletic and he's gained over 100 pounds in the last year. I'm just waiting for this horrible thing to happen and there's nothing we can do about it."