5 Shocking Revelations Behind Kelly Osbourne's 85-Pound Weight Loss Transformation

Kelly Osbourne’s dramatic 85-pound weight loss journey continues to be one of the most talked-about celebrity transformations, with new details emerging as recently as late 2024 and early 2025.

The television personality, known for her candid nature, has been open about the physical and emotional overhaul that led to her shedding a significant amount of weight, an effort she credits to a combination of surgical intervention, a radical diet change, and a commitment to sobriety and mental health.

Kelly Osbourne: Full Biography and Profile

• Full Name: Kelly Michelle Lee Osbourne
• Born: October 27, 1984
• Birthplace: Westminster, London, England, United Kingdom
• Parents: Ozzy Osbourne (father, musician) and Sharon Osbourne (mother, TV personality/manager)
• Siblings: Aimee Osbourne and Jack Osbourne
• Career Highlights: Rose to fame on the reality show The Osbournes (2002–2005); fashion correspondent on Fashion Police (2010–2015); contestant on Dancing with the Stars (2009); singer and actress.
• Partner: Sid Wilson (DJ for the band Slipknot)
• Child: Son, Sidney (born late 2022)
• Key Milestones: Has been openly sober for several years after battling addiction; underwent gastric sleeve surgery in 2020.

The Truth About Kelly's 85-Pound Transformation Method

Unlike many celebrity weight loss stories shrouded in secrecy, Kelly Osbourne has been remarkably transparent about the steps she took to achieve her transformation. The core of her 85-pound weight loss rests on a single, life-altering decision she made in 2020: undergoing gastric sleeve surgery.

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The star has repeatedly called the procedure "the best thing [she has] ever done," emphasizing that it is a tool, not a cure.

1. Gastric Sleeve Surgery: A Tool, Not a Cheat

The gastric sleeve procedure, officially called a vertical sleeve gastrectomy, involves removing a large portion of the stomach.

This significantly reduces the amount of food a person can consume and impacts the production of ghrelin, the "hunger hormone."

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Kelly was adamant that the surgery was necessary to combat her history of emotional eating and food addiction, which she described as a lifelong struggle.

She clarified that the procedure "moves you in the right direction" but requires immense dedication to diet and exercise to maintain the results.

2. The Strict Plant-Based Diet and Juicing Focus

Following her surgery, Kelly adopted a dedicated plant-based, vegan diet.

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This dietary overhaul excluded all animal products, including meat, fish, dairy, and eggs, focusing instead on nutritious fruits and vegetables.

She also incorporated juicing into her regimen, consuming drinks packed with essential nutrients to support her body's healing and ongoing weight management.

This high-fiber, low-calorie approach was crucial for maximizing the benefits of the gastric sleeve.

3. Commitment to Sobriety and Mental Health

A lesser-known but equally critical component of her transformation was her commitment to sobriety.

Kelly has been open about her battles with addiction, and she recognized that her relationship with food and her weight was deeply intertwined with her mental health struggles and substance abuse.

Declaring 2020 the "year of me," she prioritized her mental well-being alongside her physical health.

Her journey highlights the fact that true, lasting weight loss often requires addressing the underlying emotional and psychological factors that drive unhealthy habits, such as emotional eating.

The Latest Update: Kelly Osbourne on Ozempic and Plastic Surgery Rumors

As Kelly Osbourne has maintained her impressive figure, especially after the birth of her son, Sidney, in late 2022, rumors about her using modern weight-loss medications like Ozempic have been rampant.

4. Denying Ozempic for Her 85-Pound Loss, But Supporting Its Use

For a long time, Kelly firmly denied using Ozempic or similar GLP-1 agonists to achieve her 85-pound weight loss, stating her transformation was a result of her gastric sleeve and lifestyle changes.

However, in a significant and recent update on *The Osbournes Podcast*, Kelly shared a nuanced perspective.

While she maintained she did not use it for her initial dramatic loss, she revealed a change of heart, stating she is now a "fan" of using medications like Ozempic for weight management.

This shift in opinion, which aligns with her mother Sharon Osbourne's own experience with the drug, reflects the ongoing public dialogue about these powerful new tools in the fight against obesity.

5. Addressing Plastic Surgery and Post-Baby Weight

In addition to weight-loss drug speculation, Kelly has also faced persistent rumors about plastic surgery beyond her gastric sleeve.

She has consistently addressed these allegations, stating that the dramatic change in her appearance is a result of the weight loss itself and the natural changes that occur when a person loses significant body fat.

After welcoming her son with partner Sid Wilson, Kelly also spoke candidly about the challenges of post-pregnancy weight loss.

She acknowledged that the journey is continuous and that losing the "baby weight" required renewed focus on her established routine of a clean diet and consistent exercise, including HIIT workouts, cardio, and strength training.

Her appearance at her 40th birthday celebration in late 2024 showcased her continued success, looking healthier and happier than ever.

Key Takeaways from Kelly Osbourne’s Journey

Kelly Osbourne’s journey serves as a powerful testament to the fact that major, lasting weight loss requires a multi-faceted approach. It was not just one thing—it was a comprehensive overhaul of her life.

Her success is a combination of:

• Surgical Intervention: Using the gastric sleeve as a kickstart and portion control mechanism.
• Dietary Discipline: Adopting a plant-based, vegan diet that fundamentally changed her relationship with food.
• Physical Activity: Incorporating a rigorous exercise regime that included high-intensity interval training (HIIT) and strength training.
• Mental Health Focus: Prioritizing sobriety and addressing the core issues of emotional eating and addiction.

By being honest about her methods, Kelly Osbourne has provided a realistic and relatable roadmap for anyone facing similar struggles, proving that a healthy body is the result of a healthy mind.