孙楠自曝瘦了20多斤，56岁孙楠近照瘦到“认不出”，怎么明星最近都瘦下来了

Core Viewpoint - The article discusses the rising trend of weight loss among celebrities and public figures, highlighting the role of weight loss medications and social media in increasing awareness and interest in weight management solutions [4]. Group 1: Celebrity Weight Loss Stories - Sun Nan's transformation led to public astonishment, with a reported weight loss of over 20 pounds through a natural approach of healthy eating, good sleep, and moderate exercise [5][7]. - Yan Rujing successfully lost 55 pounds over six months, transitioning from a weight of 196 pounds and a BMI of 40.27 to a more fit appearance, emphasizing her rigorous training regimen of six hours daily [9][11]. - La Mu Yangzi achieved a weight loss of 20 pounds in one month through intense training and a strict low-carb diet during the filming of a reality show [12][16]. - Ma Weiwei lost 20 pounds in 45 days by adopting a low-carb diet and exercising, despite acknowledging the mental challenges associated with such a restrictive diet [17][19]. Group 2: Use of GLP-1 Medications - Celebrities like Elon Musk and Whoopi Goldberg have publicly shared their experiences with GLP-1 medications, reporting significant weight loss results, with Musk losing 30 pounds and Goldberg using medication to manage weight gained from steroid treatments [20][22]. - The effectiveness of semaglutide (Wegovy) in clinical trials shows an average weight reduction of 15% among participants, significantly outperforming previous weight loss medications [31][33]. - The STEP series of studies demonstrated that semaglutide can lead to substantial weight loss, with some participants losing over 20% of their body weight, and it has been approved by the FDA for long-term obesity management [35][34]. Group 3: Efficacy of Tirzepatide - Tirzepatide has shown promising results in clinical trials, with participants experiencing an average weight loss of up to 26.6% after a combination of lifestyle changes and medication [38][39]. - The SURMOUNT studies indicate that tirzepatide significantly reduces weight in patients with obesity or prediabetes, with a notable reduction in diabetes progression risk [36][38].