Why stars are looking skinnier than ever on the red carpet: Dangerous new trend sees celebs trying to emulate ultra-svelte look of Old Hollywood (and Ozempic makes it easier)

Last night's SAG Awards may have taken place in the year 2025 - but judging from the slim physiques and glamorous fashion choices of some of its guests, it could have easily have been the Golden Age of Hollywood. Aware that the world's eyes would be watching, A-Listers including Ariana Grande, Selena Gomez, Brooke Shields and Demi Moore turned to Old Hollywood for their fashion inspiration yesterday evening.

And if those style comparisons weren't enough, it seemed that some celebrities were also set on achieving the ultra-svelte look that was all the rage in the 1950s - sparking speculation that they have been lured in the Ozempic craze sweeping Hollywood.

Taking to the red carpet, Ariana - whose painfully thin appearance sparked concern among fans - wore a blush pink ball gown adorned with floral appliques by Spanish fashion house Loewe. Unsurprisingly, the Wicked star, 31, didn't miss the opportunity to continue her repeated red carpet homages to her idol Audrey Hepburn, who suffered from childhood malnutrition while growing up in the Nazi-occupied Netherlands, which stunted her growth and permanently affected her frame.

Drawing inspiration from Audrey's wardrobe in Roman Holiday, Ariana's dress featured an incredibly similar neckline to one the late Hollywood icon wore at the end of the 1953 film. Meanwhile, Brooke Shields was another celebrity who evoked the glamour of Old Hollywood last night.

The actress, 59, opted for a strapless silver dress that was reminiscent of the gown legendary star Ava Gardner wore to the Oscars in 1960. Pictured: Ariana Grande at the 31st Annual Screen Actors Guild Awards in Los Angeles last night. Drawing inspiration from Audrey's wardrobe in Roman Holiday, Ariana's dress featured an incredibly similar neckline to one the late Hollywood icon wore at the end of the 1953 film (pictured).

However, fans were quick to comment on Brooke's super-slim frame on X - with one arguing that 'Ozempic could be the culprit' and claiming the actress 'wasting away'. Fans first speculated that Brooke may be on Ozempic when she was pictured looking slim in New York last month - but the Blue Lagoon star has not commented on the rumours.

In addition, Selena Gomez appeared to take notes from Marilyn Monroe with her choice of dress last night. The actress, 32, opted for a V-neck black gown by Celine that skimmed her shoulders and also had a thigh-high split. The voluminous, off-shoulder detail was seemingly inspired by the black gown Marilyn Monroe wore the night she presented her first Oscar in 1951.

Although fans gushed how Selena 'always knows how to shine' at red carpet events, others speculated that she could be another star who has turned to Ozempic - arguing that she 'looks different every time' they see her. Meanwhile, Georgina Chapman appeared noticeably even slimmer than usual - as she modelled her black ruffled dress on the red carpet, which resembled one Loretta Young wore to the Oscars in 1948.

Speaking to FEMAIL, Dr Krutika Nanavati warned of the dangers of using Ozempic to emulate the ultra-svelte look of Old Hollywood. Pictured: Brooke Shields at the 31st Annual Screen Actors Guild Awards in Los Angeles last night. The Blue Lagoon star appeared to take fashion notes from the famous silver dress Ava Gardner wore to the 1960 Oscars.

Pictured: Selena Gomez at the 31st Annual Screen Actors Guild Awards in Los Angeles last night. Selena Gomez's voluminous, off-shoulder dress was seemingly inspired by the black gown Marilyn Monroe wore the night she presented her first Oscar in 1951. Pictured: Georgina Chapman at the 31st Annual Screen Actors Guild Awards in Los Angeles last night.

Georgina Chapman appeared noticeably even slimmer than usual - as she modelled her black ruffled dress on the red carpet, which resembled one Loretta Young wore to the Oscars in 1948 (pictured). The expert said: 'The idea of chasing Old Hollywood beauty standards in today's world is completely unrealistic. Women's bodies have changed over time due to better nutrition, different lifestyles, and overall health improvements.

'Many of those iconic actresses followed extreme diets, smoked to suppress appetite, and engaged in habits we now know are harmful. Trying to force your body into that outdated mould, especially with a drug like Ozempic, is not just difficult. It is dangerous.

'Ozempic was created for diabetes management, not cosmetic weight loss. The problem is that it does not just reduce fat. It also causes muscle loss, weakness, fatigue, and a slowed metabolism. 'People assume they are just losing excess weight, but in reality, they are also losing strength and resilience. Rapid weight loss can leave behind loose skin, brittle hair, and hormonal imbalances, making people look unwell rather than simply thin.

'What many do not realize is that the weight loss from Ozempic is hard to maintain. The moment people stop taking it, their appetite returns and weight gain often follows. 'Instead of chasing quick fixes, the focus should be on sustainable and balanced health habits that build strength and long-term wellness. Hollywood's beauty ideals will keep changing, but what really matters is how you feel in your own skin.'.