Roxy Jacenko sizzles in a bikini as she reveals her shock new weight and crazy diet after 18kg slim down

Roxy Jacenko turned heads for all the right reasons when she unveiled a series of jaw-dropping bikini snaps.

The PR queen, 44, took to social media on Wednesday to flaunt her incredible bikini body from a beachside photo shoot.

In one photo, the blonde beauty perched herself on a rock wearing nothing but skimpy bikini bottoms and a cropped white singlet top that showed off her washboard abs.

Another image showed Roxy wearing a black bikini from Fella Swim that featured high-waist bottoms with a cutout silhouette paired with a low scoop neck top.

The PR maven lay on the sand and smiled while proudly displaying her enviable figure.

A third photo echoed her black bikini photo, with the Sydney socialite laying on her side while wearing a collared short-sleeved cardigan and beige tie side bikini bottoms.

Her blonde hair was styled in effortlessly beach-style waves that were a perfect fit to the scene of the shoot.

Following the beach snaps, Roxy revealed to Daily Mail Australia her updated day on a plate and everything she eats in a day following her drastic 18kg weight loss.

Every day, she enjoys two skim piccolo lattes and one peeled grapefruit.

She eats one meal per day at dinner time, fasting all day until the evening from Monday to Friday, though finds more balance on the weekends when socialising.

'I don't do breakfast or lunch, instead I do dinner at 7pm each day which is focused on protein only and salad,' she said previously.

She only drinks alcohol on the weekend if she has an occasion and limits herself to two drinks.

In terms of fitness and staying in shape, Roxy undergoes 'contrast therapy' every other day, which involves alternating between ice bath plunges and sweaty sauna sessions.

This method is believed to help to improve blood circulation throughout your body. 

She also attends the gym three to four times per week and focuses on weightlifting and cardio on the treadmill.

Roxy says spending seven years on tamoxifen, a hormone therapy drug to treat breast cancer, was a huge contributor to her weight gain.

When she finally stopped taking it in February 2023, she weighed 68kg.

Speaking with Daily Mail Australia, Roxy said she has 'been on a mission to shed the weight the cancer medication put on'.

She has since dropped an impressive 18kg, making her current weigh-in at 50kg.

Roxy recently spoke about the terrifying moment she overdosed on Ozempic in an effort to lose weight.

She revealed she'd taken four times the recommended dosage before she suffered from severe vomiting and non-stop shaking.

'I put so much weight on. I would have to undo my jeans when I sat in the car so I got sucked in by it,' she explained on The Lazy CEO Podcast with Jane Lu.

'I bought it, I tried it. I took four times the amount in the first go.'

Roxy continued by saying she's 'so sick of people' who deny using Ozempic, adding: 'I call a spade a spade on my platform and I don't care.'

She also previously said she thought she was going to 'die' after taking one milligram of the diabetic treatment, which was four times the amount prescribed to her by a doctor.

'I thought I was actually going to die. I have had cancer, radiation therapy, all of that. It doesn't even compare to how bad I felt when I took this drug,' she told The Saturday Telegraph.

'For the first 12 hours I was OK. I vomited four times that morning, once in a hire car, and I went to work.'

Roxy revealed she then suffered from severe vomiting and non-stop 'epilepsy type' shaking which landed her in a drug overdose clinic for three days.

'I called an ambulance. An ambulance was going to be an hour away but I thought I was going to die. I went to St Vincent's,' she said.

Roxy has since put out a warning to all who are tempted to use Hollywood's latest quick-fix weight loss drug.

She said using the drug was 'pathetic' and 'silly', and called for celebrities to stop lying about not using it to shed kilos.

Ozempic has been a hot topic in Hollywood with stars either admitting to using the diabetes drug for weight loss or staunchly denying it.

Semaglutide is sold under the brand names Ozempic and Rybelsus as an antidiabetic medication used for the treatment of type 2 diabetes.

It is also sold under the brand name Wegovy as an anti-obesity medication for long-term weight management.

The drugs act like a hormone in the brain which causes people to feel less hungry and slow the clearing of food from the stomach, which spurs weight loss.

Ozempic and Wegovy have surged in popularity since becoming the first drugs proven to aid weight loss.