Declan Donnelly has shown his appreciation and thanked the public for their shows of support, after it was revealed that his TV co-host and best friend Ant McPartlin checked into rehab after experiencing difficulty with alcohol and prescription drugs.

Speaking on their joint Twitter account, Declan wrote: “Thank you for all the kind messages and well wishes for the big fella. He will be touched. Your support is, as ever, much appreciated.”

I’m A Celebrity… and Britain’s Got Talent television co-host, Ant, has had long-standing issues with depression and anxiety, which have enabled his current drink and drug problems, The Mirror reported.

Ant also suffers from chronic pain caused by chronic knee problems and said it has led to him becoming reliant on pain-killers.

Speaking to The Sun On Sunday, Ant said: “The first step is to admit to yourself you need help.

“I’ve let people down. I’m truly sorry.

“I feel like I have let a lot of people down and for that I’m truly sorry.

“I want to thank my wife, family and closest friends through this really difficult time.”

He added: “I have spoken out because I think it is important that people ask for help if they are going through a rough time and get the proper treatment to help their recovery.”

He is expected to spend at least two months in a clinic.

The Mirror has reported that Dec, who has known Ant for more than two decades, is devastated for his best friend and shocked by Ant’s problems. Although, he had been concerned about his friend’s well-being, but didn’t know the extent to which Ant’s problems went.

“For Dec it was a bit of a bombshell hearing about these addiction problems. He had no idea of the full extent of the torment his best friend was going through,” a source told The Sun on Sunday .

“Dec couldn’t believe his ears through some of it. Soon the truth was all coming out: the substance abuse, the painkillers he was hooked on, the secret drinking sessions.

“It was almost too much for Dec to take in.”

Judging the support that has been expressed on social media, it’s clear that Dec, Ant’s wife and the entire country is behind Ant. Here’s hoping he gets well soon!