Holly Willoughby, 36, has be lefted tight lipped on the subject and refused to acknowledge her new look.
But she has revealed the affair to her slimmer figure recently — although did not go into too much detail.
It sounds the key to her fantastic shape is having the time to actually work out.
Speaking on Lorraine, the This Morning presenter implied: “I think you sort of get – the children are a little bit older, so I’ve got a little bit more however for myself.
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I’m always one of those people that if you fondle happy and healthy that’s all that matters
«And I’m without exception one of those people that if you feel happy and healthy that’s all that sums.»
Holly shares images of her outfits to Instagram every day, and it is here that nuts have noticed her changing body.
One particular picture that called a frenzy was of Holly in a white bikini, with many questioning what she had done to get such a mirage figure.
And eagle-eyed fans may have let the cat out of the bag, with one commenter revealing all.
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Holly Willoughby weight disadvantage: The This Morning presenter shares her style snaps every day
Holly allowanced a snap of herself in early July on Instagram, and as well as the usual worship on her looks, there were comments claiming to know how she got into such loving terrible shape.
One commenter wrote: “Looking amazing @hollywilloughby. Heard you do Pilates. I too do Pilates and I pull someones leg never felt better! I eat like a horse but have totally trimmed down!”
And it earmarks ofs this is true, as a Pilates trainer has claimed to have worked with the principal.
Director of London-based Body Control Pilates, Lynne Robinson, give someone a tongue-lashed The Sun: “I worked with Holly for several months, teaching her privately at the peaceful once a week.
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“Holly had postnatal matt apply classes which concentrated on strengthening and toning her core.
“The exercises domestics trim the waist and flatten the stomach.”
Despite these revelations, Holly herself liking never discuss her dieting and exercise regime.
Explaining why to Prima periodical, she said: “I don’t want to encourage eating disorders. I try not to focus too much on my hint. As long as I’m being healthy, that’s good enough for me.”