Holly Willoughby has had a long career in television, in fact, spanning nearly over 20 years. She is a regular bubble of laughter and positivity on This Morning alongside her TV co-host Philip Schofield. Holly regularly posts images of herself on Instagram looking toned and in shape, and fans have noticed, with several people bombarding the star on a daily basis with asking questions about her incredible weight loss.

However, despite losing weight, and looking noticeably trimmer, the mum-of-three doesnt want to give away too much about her dieting secrets. So, what did she do to trim down?

Holly has notable television credentials to her name including; Dancing on Ice, Celebrity Juice, Im A Celebrity Get Me Out of Here! and The Voice.

Over the years, fans of the daytime television star have noticed changes in her frame.

Speaking to Prima Magazine, Holly said: I try not to focus too much on my appearance. As long as Im being healthy, thats good enough for me.

READ MORE:Paleo diet: What is it and why is it so popular

Earlier this year, the television host revealed why she didn't want to talk about her diet plan.

She told the Sunday Times: It's a personal thing for me, and I think people get obsessive with it.

"Everybody knows what leads to a healthy lifestyle, but it's not up to me to give you a blow-by-blow account of what I've eaten that day. It's not helpful, and it's not what's important.

Holly has become slimmer over the past couple of years, after having her third child Chester in 2014.

DON'T MISS

Despite keeping tight lipped about her slim figure, a TV source spoke out to shed some light on Hollys diet.

The source told The Mirror: Holly is determined to keep her new-look body so she eats chicken, carrots and hummus.

The source, however, did reveal that Holly has a sweet tooth and occasionally can be spotted tucking into one particular sweet treat to calm her cravings.

Youll never see her without a pack of mango either, to satisfy her sweet tooth, they added.

The source added that Holly has rediscovered herself after adopting a new healthy lifestyle: "She says she's discovered a 'new me' and won't be giving up anytime soon."

As well as following a diet plan, Lynne Robinson, director of London-based Body Control Pilates, has explained she worked with the star on her exercise routine.

I worked with Holly for several months, teaching her privately at her home once a week, she told The Sun.

Holly had postnatal matt work classes which concentrated on strengthening and toning her core.

While she has remained tight-lipped about just how she is doing it, her Celebrity Juice co-star Keith Lemon wasn't quite so secretive.

Keith Lemon revealed her trim figure was down to boxing.

More:
Holly Willoughby weight loss: How did the daytime TV star trim down? - Express.co.uk