The 36-year-old’s figure has been changing shape over the last six months.
Once famous for flaunting her curves, Holly now sports a trimmed down physique and toned arms and legs.
The mother-of-three revealed she will never discuss her diet and weight loss tips as she’s interviewed so many people affected by eating disorders.
But one woman can reveal how Holly accomplished her svelte figure.
After giving birth to her daughter Belle in 2011, Holly worked on strengthening her core and sculpting a six pack in weekly Pilates sessions at home.
Director of London-based Body Control Pilates, Lynne Robinson, helped the presenter on her journey.
She told The Sun:“I worked with Holly for several months, teaching her privately at the home once a week.
“Holly had postnatal matt work classes which concentrated on strengthening and toning her core.
“The exercises help trim the waist and flatten the stomach.”
Exercises Lynne suggests include curl ups with the help of a pillow and large towel, a movement which focuses on alignment, lengthening the spine and connecting the deep abdominal muscles.
She also encourages her celebrity clients to complete arm raise movements holding a towel high in the air.
Speaking to Prima Magazine, Holly revealed why she’s so secretive about any weight loss.
She said: “I don’t want to encourage eating disorders. I try not to focus too much on my appearance. As long as I’m being healthy, that’s good enough for me.
“I’m quite active and I try not to let the ay I look be the main focus because it’s not the important thing.
“I actually avoid talking about my diet and exercise regime because I have interviewed so many people affected by eating disorders.
“I know that some people in chat rooms can really fixate on other people’s diets.”
Another star who’s turned heads with his weight loss is War Dogs actor Jonah Hill.