Kelly Osbourne's Weight Loss: Everything She's Said About Her Health

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NEED TO KNOW

• Kelly Osbourne has been open about her health struggles over the years

• She lost 85 lbs. after undergoing gastric sleeve surgery in 2018

• In December 2025, she said she had been struggling to eat since her father’s death in the summer, and slammed critics of her appearance

Kelly Osbourne has long been open about her struggles with her body and weight since rising to fame as a teenager on her family’s reality show, The Osbournes, over two decades ago.

“I got pulled into the head of the agency’s office and he … gave me a whole speech about how I was too fat for TV and I needed to lose weight, and that if I lost weight, I would look better,” she recalled being told as a child on a 2024 episode of The Osbournes Podcast. “And he was just saying, ‘You’re not a movie star, but you could be one if you lost weight.’ “

As an adult, Osbourne lost 85 lbs. following gastric sleeve surgery, though she struggled again with her appearance while pregnant with her first child, son Sidney, who was born in 2022.

“I was not gentle on myself,” she told PEOPLE in 2024 of both gaining and losing baby weight. “It’s something I’d be mad at myself for. I didn’t need to hide.”

Most recently, the reality star had a stern message to those who criticized her dramatic weight loss in the months since her father Ozzy Osbourne‘s death.

“To the people who keep thinking they’re being funny and mean by writing comments like ‘Are you ill,’ or ‘Get off Ozempic, you don’t look right.’ My dad just died, and I’m doing the best that I can,” she said in a since-deleted clip. “So to all those people, ‘f— off.’ ”

Here’s everything Kelly Osbourne has said about her weight loss journey and health over the years.

She underwent gastric sleeve surgery around 2018 and lost 85 lbs.

In August 2020, Osbourne revealed she underwent gastric sleeve surgery “almost two years ago.” The procedure removes part of the stomach, which helps patients feel full on smaller portions of food.

“I had surgery; I don’t give a f— what anyone has to say,” Osbourne told hosts Dax Holt and Adam Glyn on their Hollywood Raw podcast. “I will never ever ever lie about it ever. It is the best thing I have ever done.”

In addition to the surgery, she exercised and started to eat more nutritiously. “If you don’t work out and you don’t eat right, you gain weight,” she shared. “All [the surgery] does is move you in the right direction.”

It also helped with her drug and alcohol addiction issues. “It cuts out this hormone that if you have addiction issues, it stops your craving and it makes you not emotionally eat, which is a huge problem for me.”

Thanks to the surgery and a healthier lifestyle, Osbourne lost 85 lbs.

Osbourne stayed out of the spotlight during her pregnancy with son Sid

Osbourne and Sid Wilson, a DJ for the band Slipknot, welcomed a son named Sidney in 2022.

During her pregnancy, Osbourne avoided going out in public to prevent mean comments about her body.

“I gained 100 pounds,” she told PEOPLE in 2024. “I just didn’t want pictures out there. I didn’t want to face it and have people be like, ‘Oh, she’s a moose!’ So I just cut the problem out.”

She also suffered gestational diabetes during her pregnancy, a type of diabetes caused by hormonal changes and the body’s need to produce more sugar to meet the increased need for insulin while carrying the baby.

She said she took post-baby weight loss “too far”

During a September 2023 conversation with Vanderpump Rules star Scheana Shay on the Scheananigans with Scheana Shay podcast, Osbourne discussed her gestational diabetes diagnosis and how it eventually led her to lose a lot of weight after giving birth.

“How they figured out I was gestational was that I was gaining a lot of weight but I wasn’t eating that much,” she told Shay. “And it turned out that the placenta blocks the way your body filters through sugar and it will go one way or the other, where you’ll lose a lot of weight or gain a lot of weight and I gained a lot of weight.”

She continued, “I was on a mission after having the baby to lose all my baby weight. And then I was like, well I lost all the baby weight, lets see how far I can go with it. [I] went a little bit too far but [I] stopped.”

She denied taking Ozempic in 2024

The reality star denied taking Ozempic to aid her weight loss during a 2024 interview with Extra. “I know everybody thinks I took Ozempic. I did not take Ozempic. I don’t know where that came from.”

She’s now, however, in support of those who use the type 2 diabetes drug to help them lose weight. “I made some comments about Ozempic recently where it was like 50 percent of the people hated it, 50 percent of the people liked it,” she explained on her family’s podcast, The Osbournes Podcast, in April 2024. “But the truth is, my opinion used to be the same as the people who didn’t like it until I met somebody who lost weight from Ozempic and it changed their life.”

Talking to people who successfully lost weight helped her understand its benefits, she added. “They explained to me how it took the mental obsession with food away and from that reprieve, allowed them to dig deeper through therapy and really figure out who they were and how life-changing it was for them. It completely changed my opinion on it, so I’m like yeah, it’s great. If there’s a medication out there that can help people lose weight, then what’s so bad about it?”

She’s had body sculpting treatments since her pregnancy

While speaking to Extra, Osbourne also opened up about the various non-surgical treatments she’s participated in since giving birth to Sid.

“I had the baby and my stomach got so many stretch marks, and the skin, it looks like it lost its elasticity,” Osbourne told Extra. She had skin-tightening treatments, EMFACE and EMSCULPT, which tone and tighten muscles in the face and body while reducing fat.

Osbourne discussed her health journey at a summit in May 2025

Osbourne got candid while speaking about her wellness journey at The Beacher Vitality Happy & Healthy Summit in May 2025.

“You’ll never read an article about me that hasn’t got a comment about my weight,” she told the audience. “I have been a drug addict, an alcoholic … I’ve been a complete mess, disrespectful to people, horrible — but I got more s— for being fat than I did for anything else. It’s insane.”

She added, “People [would] say, ‘You’re so pretty. Why don’t you just lose a little bit of weight, and then you’ll be the total package.”

Prioritizing her mental health has been key to her success: “I tried probably everything that there is out there, whether it be surgery, medication, diet and exercise. I got my mind where I needed it to be, and everything started to fall into place.”

She slammed her weight loss critics in December 2025

In December 2025, Osbourne made headlines with a message to those who have criticized her dramatic weight loss in the months since her father Ozzy Osbourne’s death.

“To the people who keep thinking they’re being funny and mean by writing comments like ‘Are you ill,’ or ‘Get off Ozempic, you don’t look right.’ My dad just died, and I’m doing the best that I can, and the only thing I have to live for right now is my family,” she said in a since-deleted clip, adding, “So to all those people, ‘f— off.’ “

Her mother, Sharon Osbourne, was quick to come to Osbourne’s defense, telling British broadcaster Piers Morgan, “She’s right. She’s lost her daddy, she can’t eat right now.”

Read the original article on People