The former model said she dedicates the weekends exclusively to her family - husband Dan Baldwin, 43, and their children Harry, nine, Belle, seven, and Chester, four.
It was recently announced that Holly was the new brand ambassador of Marks & Spencer, with the mother-of-three sharing her top fashion tips with fans.
"I think the biggest misconception about me is that people seem to think that I want it all and that I had it all and I walked away from having it all", she said.
Willoughby, who is now in Australia co-hosting I'm A Celebrity... with Declan Donnelly, told the magazine that she has never been interested in "having it all". 'That was never part of it.
Her daily fashion choices in particular have caused a stir, with numerous pieces selling out online after she features them on her social media pages. Also, I'm not completely straight up and down, I'm curvy, so I think I'm sort of a normal shape, wearing normal clothes.
But she insisted that her style has to be "functional" to cope with her busy family life.
Presenters Holly Willoughby and Declan Donnelly revealed the next person to leave I'm A Celebrity.
She also revealed that her style inspiration is Cate Blanchett as "she's really feminine but strong".
Noel, 69, was the first to be eliminated from the Australian jungle on Friday.
She said: "On "This Morning", you can actually see what's being worn". We hugged. There is no feud'.
The full interview appears in the January issue of Red, on sale December 4.