Campbell hit back at the comments from ourselves (NU-Mad) and other websites, saying: "People who say I am fat are idiots!
"I haven't trained this summer because I have been organising my wedding and I have been on holiday ... there is nothing I could have done about it."
Chris Hughton again left Campbell at home as his team went off on its travels, hoping he works on his fitness.
Hughton confirmed the veteran would be unavailable for United's return to the Premier League against Manchester United on August 16, but did say: "He is not fat ... just unfit".