Fergie insists she's not "psychotic" about food.
The Black Eyed Peas singer says that while she watches while she eats, she will allow herself the occasional treat and won't worry about it.
She said: "I'm one of those girls who's not psychotic about what I eat. I'll watch what I eat, but I'll let myself cheat once in a while, too."
As well as following a sensible diet, Fergie maintains her stunning figure by doing regular exercise.
She said: "A little bit of play and a little bit of work, but always make sure you get your workout in. It's about being healthy but still having fun."
However, Fergie - who is married to actor Josh Duhamel - says she's not concerned about her figure at the moment as she is putting all her efforts into the house she shares with her handsome husband.
The pop star - who is having a career break - told Life & Style magazine: "I want to finish decorating my home head to toe and finish my closet. It's a long, long process putting the female touch on the house!"
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