The glamour model described her experience on the reality show as "horrible" and advised This Morning host Holly Willoughby to never take part.
"It was horrible in there, everything was horrible. Honestly, it was probably the worst decision of my life to go in there," she told Willoughby and Eamonn Holmes.
"Holly, please take my advice, not a lot of people take my advice, but go and eat bugs in the jungle [on I'm a Celebrity] - do not go into the Big Brother house!"
She added: "There were good points and I made some really good friends in there, but the editing is very clever which we will talk about after this..."
McLean was evicted in the semi-final of the Channel 5 series.
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