Kate Beckinsale Shares Workout Video: Here Are Her Diet Tips

kate beckinsale bikini diet workout
Kate Beckinsale has a sensational bikini body at age 45, thanks to an organic diet and regular exercise. (Instagram)

British actress Kate Beckinsale spotlighted her age-defying physique in an Instagram workout clip, where she flipped a 150-pound tire at the gym.

“Avail for farm work,” Beckinsale wrote in the caption to the Instagram post.

In the video, Kate shows off her toned arms and chiseled abs at the Hollywood gym of celebrity fitness trainer Gunnar Peterson.

Beckinsale often shares brief workout clips on Instagram, to the delight of her 3 million followers.

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Avail for farm work

A post shared by Kate Beckinsale (@katebeckinsale) on

‘I’m the fittest I’ve ever been!’

At age 45, Beckinsale still has the same sizzling bikini body that rocketed her to stardom in the blockbuster “Underworld” vampire movie series.

Kate has credited a low-carb, high-fat ketogenic-style diet and regular workouts that include cardio exercise, weight-training and yoga for his youthful beauty.

“I’m the fittest I’ve ever been!” Beckinsale told Shape. “I do circuit training interspersed with brutal cardio, such as crazy things on a non-motorized treadmill. That part is torture. But the thing I like about circuit training is that you’re never doing one thing for very long.”

‘Working out is nature’s anti-depressant’

Like other fitness devotees, Kate Beckinsale says daily exercise prevents depression and eases anxiety.

“I start out absolutely dreading it, do an incredibly punishing workout, b*tch about it the whole time, and end up feeling 100 percent better when I leave,”  she gushes. “Working out is basically nature’s antidepressant.”

Kate Beckinsale was once a vegetarian

Kate once was a vegetarian, but started eating chicken and fish, saying eating only vegetables made her lethargic.

Now Beckinsale’s diet is more diversified, but she tries to limit carbs, consume plenty of high-quality fats like olive oil and salmon, and avoids alcohol.

kate beckinsale bikini photo
Kate Beckinsale at 45: I’m the fittest I’ve ever been! (Shape)

Kate: Hardcore workouts changed my life

Beckinsale has always loved yoga, but says she started embracing more intense workouts because they made her look and feel better.

“I love yoga, and that’s all I used to do,” she says. “But hardcore workouts have really made a big difference in my life. I have a lot of internal energy, and intense exercise helps me channel that energy. I find balance by doing a workout that makes me pour sweat”

Beckinsale is divorced from British actor Michael Sheen, with whom she has a daughter, Lily (born in 1999). After Sheen, Kate was married to American film director from 2004 to 2016.

Related: Britney Spears Does Bikini Yoga After Release from Mental Hospital