'I've met the devil': Ally Langdon fights back tears as she leads tough conversation every family must have

Tonight's episode of Parental Guidance is "a must see night for every family".

In a trailer, which you can watch in the video above, host Ally Langdon holds back tears in an emotional and confronting episode centred around body image.

Ashlee Thomas, an eating disorder survivor and advocate, bravely shares a home video of her suffering with a serious body image disorder.

Parental Guidance airs Mondays at 7.30pm on Channel 9 and 9Now.

In the heart-breaking clip from years earlier, Ashlee screams as she fights voices she hears telling her not to eat.

Ashlee's parents Kendall and Andrew join the Parental Guidance cast to share the harrowing truth behind their family's story and their daughter's journey to recovery.

"I have met the devil," Kendall says.

Thankfully, Ashlee's story has a happy ending.

"I wouldn't be here if it wasn't for those two amazing people never giving up on me," Ashlee thanks her parents for their unconditional support.

EXCLUSIVE: Ally Langdon seeks help for very relatable parenting problem

Everyone in the room, Ally and the parents included, are noticably moved by Ashlee's story and wipe tears from their eyes.

Ally begs the importance of having these difficult conversations with our kids.

"This is why we're focused on body image, because when it goes wrong it's the consequences," she says.

EXCLUSIVE: Ally Langdon on the part of parenting that 'truly terrifies' her – and it's not what you might expect

Tune in tonight at 7:30pm to watch a very important episode of Parental Guidance.

For support with eating disorders or body image concerns, call Butterfly's National Helpline on 1800 ED HOPE (1800 33 4673), chat online or email support@butterfly.org.au, 7 days a week, 8am-midnight (AEST).

Parental Guidance airs Mondays at 7.30pm on Channel 9 and 9Now.

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