Kerry Katona was filming an Instagram Live session tonight about the controversial Skinny Jab, which is allegedly an aid to boosting weight loss, and is favoured by other celebs such as Gemma Collins.
At the end of the session, Kerry thanked fans for tuning in but fired back at one troll who had left a cruel remark in the comments section.
The social networker asked Kerry if she was "on coke".
A furious Kerry fired back at the remark before signing off.
Snapping back at the Instagram user's question, Katie Price 's best pal said: "Why, 'cause I'm sniffing? I don't have to explain every time I've got a b****y cold."
Kerry, 39, has been clean from drugs for 10 years and has been open about her past substance battles.
Her prior addiction saw her check herself into rehab in 2008 and 2010 and she admitted that cocaine used to be her "best friend".
But these days, Kerry insists she's turned her life around, seeing her "rarely go out" and "never drinking at home".
In a previous chat with the Mirror last year, Kerry said: "It wasn't so much that I was an addict, more that I binged. It got to the point I was so lonely, so empty. Cocaine was my best friend. It was always there for me when I was down.
'When I was feeling worthless it gave me that self love and confidence. But it turned out to be a liar.
"I'm not tempted to go down that route any more. I don't even drink at home – I've got to do the school run."
Kerry also praised her mother Sue during the chat, who quit drinking and turned her life around.
In May 2018, Kerry was invited to open a new treatment centre in Gloucestershire called The Highgrove, where residents can recover from alcohol and drug addictions.