A Scientist Names the Hollywood Actress With the Most Perfect Body

Kelly Brook is back in the headlines for two very different reasons: the never-dies debate over her so-called perfect proportions, and a new TV swing straight into the jungle. If you like your pop culture with oddly specific numbers and reality TV chaos, this one has range.

The long shadow of that 'perfect body' study

Way back in 2004, a team at the University of Texas at Austin crunched data and declared an ideal set of female body metrics based on attractiveness preferences. Their sweet spot: roughly 93-61-87 cm for bust-waist-hip, a BMI around 18.85, and a waist-to-hip ratio in the 0.65 to 0.75 zone. Very neat. Very lab-coat. Also, very debatable in the real world.

Fast-forward to 2016 and outlets like FHM and The Sun were pointing to Kelly Brook as the real-life match for that template, citing measurements of about 99-63-91 cm and a BMI of 18.5. She got grouped with other famously curvy stars (Kim Kardashian, Salma Hayek, Jennifer Lopez), while also weathering the usual body-shaming that proves beauty standards are wildly cultural and often arbitrary.

Receipts from her early-2000s run: she topped FHM's 100 Sexiest Women in the World in 2005 with a staggering 15 million votes, and a Grazia poll of 5,000 women crowned her the best British female body. So yes, the public has weighed in. Repeatedly.

What she actually does to stay fit now

In May 2025, Brook laid out how she got back in shape to run the London Marathon. After moving home from Los Angeles in 2017, she says her fitness slipped and her dress size drifted from a 12 to a 16. With coaching and a push from her husband, Jeremy Parisi, she trained hard, shed two stone, and crossed the marathon finish line in tears, calling it a huge personal win. She even finished despite fracturing her foot during the race. Brutal, but she got it done.

Day to day, she keeps it pretty practical: on busy mornings it is a granola bar and coffee or a SlimFast shake; lunch is usually another shake, a meal bar, or honestly just a bag of pretzels if she is on the move; dinner is non-negotiable sit-down time with Jeremy, who cooks classic, hearty home meals. He is Italian-French, so food is a ritual and a group sport, and they try to stay active together.

'It is not about slimming down for me, it is maintaining.'

She is also pretty relaxed about the noise. She says she is comfortable in her body, confident, and that Jeremy does not obsess over her weight if it fluctuates. In her words, feeling good tends to boost the romance. Looking back at her early career, she remembers being labeled 'curvy' when fashion was worshipping the ultra-skinny look, and credits the men's magazine era for championing bodies like hers when mainstream catwalks did not.

As for people side-eyeing the SlimFast thing, she is clear: it is a tool, not a crash diet. Maintenance, not vanishing act.

Jungle time: Brook heads to I am A Celebrity 2025

Right as all that health talk was making the rounds, Brook was photographed at Heathrow in brown loungewear, makeup-free and smiling, on her way to Australia for this year's I am A Celebrity...Get Me Out of Here! Expect the usual grubs, grime, and wildly undignified challenges.

• Kelly Brook — Model, actress, TV presenter
• Jack Osbourne — Reality TV personality
• Ruby Wax — Comedian and interviewer
• Alex Scott — Former footballer and presenter
• Martin Kemp — Singer and actor
• Shona McGarty — EastEnders actress
• Vogue Williams — Model and TV presenter
• Eddie Kadi — Comedian
• Aitch — Rapper
• Tom Read Wilson — TV personality
• AngryGinge (Morgan Burtwistle) — Social media influencer

Premiere date is currently pegged for November 16, 2025. Production has reportedly cleared thousands of invasive, toxic cane toads around camp to reduce risk, but close calls with local wildlife are still part of the gig. Because of course they are.

So where does that leave us?

If you love tidy science, those 2004 numbers give you a blueprint. If you live in the real world, it comes down to taste, culture, and how you feel in your own skin. Brook seems firmly in the latter camp: train hard, eat dinner with your partner, do the big scary thing anyway, and do not let trolls set your mood.

Will she run the 2025 jungle the way she runs a beach shoot? We will find out soon enough. And if perfection can be graphed, I am still waiting for the chart that includes charisma, blisters, and a broken foot.