Matt Willis watched addiction documentary with his 13-year-old daughter

The Busted star watched the show with 13-year-old Isabelle and said she had 'incredible questions' about what she saw.

Matt Willis: Addiction in the Family (BBC)
Matt Willis watched his new documentary Addiction in the Family with his eldest daughter. (BBC)

Matt Willis has revealed he showed his 13-year-old daughter his addiction documentary because he believes she is "old enough" to know about the dangers of drugs and alcohol.

The 40-year-old Busted star — who has three children with wife Emma Willis, 47 — shares the realities of his drink and drug addiction battles in a new BBC documentary due to air on Wednesday 17 May.

Willis revealed on The One Show that he had watched the show with 13-year-old Isabelle.

Read more: Matt and Emma Willis: How they built their rocksteady relationship

He said: "We watched it the other day together She’s almost 14, I thought she’s old enough to know about alcoholism and addiction.

LONDON, ENGLAND - AUGUST 10:  Emma Willis (L) and cast member Matt Willis attend the press night after party for
Emma Willis and Matt Willis have three children together. (Getty Images)

"We watched it together and she had the most incredible questions, I was blown away by her reaction to it. I thought it was important as her friends or parents at school might watch it so I wanted to preempt her with that."

Matt Willis: Addiction In The Family set out to explore the science of addiction.

Willis said: "The more we got into the process of making the documentary it became quite obvious that it was rooted in this personal story. So it became much more about me and less about the science. We did find out some incredible science behind addiction."

The musician and TV presenter is also father to son Ace, 11, and seven-year-old daughter Trixie with The Voice presenter Emma.

Matt Willis and Dr Louise Paterson a Research Fellow at Imperial College - Matt Willis: Addiction in the Family (BBC)
Matt Willis talks to medical professionals about the science behind addiction. (BBC)

Willis recently confessed he was using six grammes of cocaine a day when he relapsed into addiction on a reunion tour with Busted in 2016.

He said: "I was like, 'Cocaine wasn’t a problem for me, alcohol was my downfall'

"Within a month I was doing six grammes, bang, bang, bang, bang, on my own every f***ing day and not coming home until 3am in the morning, pretending I was working on my album.

"I wasn’t really writing I was making s*** music in the studio doing coke.

Read more: Busted tour: How to buy tickets for comeback shows

"It was straight back to that shame cycle, the shame of relapse, the same of letting everyone down, the shame of using uncontrollably trying to stop and not being able to."

Watch: Matt Willis admits addiction drove him to use six grammes of cocaine a day