Jack, 19, admitted that he was tired of being the only singleton in his office and was looking for a girl he could maybe settle down with.
He confessed that he was previously unhappy with his body shape and so he hit the gym to tone up and lose weight.
He revealed that he weighed over 14 stone and told viewers at home: “I went from fat Jack to fit Jack.”When he arrived into the studio and inspected the bodies of six anonymous women, he said he wasn’t impressed with one contestants body because their curves reminded him of how he used to look.
Jack told Anna: “Because of the size I was and how I was, when I look at someone who is maybe curvier, I find it hard to find the attraction.
“Following his comments, viewers took to Twitter to slam the series and threatened to boycott over his “body-shaming”.
One tweeted: “Think I might just switch off now. This isn’t a dating show, it’s just body shaming #NakedAttraction.”
While another added: “From body shaming to fat shaming. Hitting it out of the park tonight Channel 4. #NakedAttraction @C4Naked.”
“#nakedattraction What a p*****k Jack is. The sly weight comments he made about Rosanna were totally uncalled for. Hope he doesn’t find love,” a third shared.
Another continued: “Great this bloke is now body confident, but no need to put somebody else down for the same reason he has issues!?! #NakedAttraction.”
Naked Attraction continues on Thursday on Channel 4 at 10pm.