The debate was about whether children need to have more overweight characters to look up to and about the stigma of being heavier.
Presenter Steve Miller, who hosted Fat Families on Sky in 2010, clashed with Natasha Laramie, who calls herself the Fat Doctor.
The debate started off amicably, as Steve told Natasha that whilst he agreed that children should have some more diverse role models, he didn’t want being “fat” to be glorified.
As the pair began to bicker furiously about the controversial topic, Phillip quickly interjected as he told the pair they couldn’t talk over each other.
He said: “Don’t talk at the same time, it’s even harder with calls like this because you cut each other off.
“So Steve, why don’t you go next?”
The pair managed to calm down their spat as they began to take it in turns to talk, although the tension between them certainly stayed frosty.
Later in the debate, Natasha said she never used the word obese as she thought it was dangerous, and that doctors weren’t giving the same treatment to overweight patients as they were to slimmer ones.
Phillip said to her: “Steve says being obese is the second highest killer to cancer,” to which Natasha replied: “That’s not true, that’s absolute nonsense.
“He is just quoting false statistics,” as Steve quickly began to refute her, and furiously interjected: “No! You let me speak for a minute.
“The latest study from Harvard has made it absolutely clear that you can’t be fat and healthy, and it is a disgrace for any doctor to say that if you’re fat, you can be really healthy.”
Natasha then said she didn’t have the time to quote all of the science, but she was willing to stake her career on that people should stop telling other people they’re overweight.
As Steve chipped in once again, this time it was Holly who chipped in as she rounded up the debate by saying: “I don’t think you two are ever going to agree, and I think it’s one of those where we could talk about it all day.”
This Morning continues tomorrow at 10am on ITV.