Kelly Osbourne’s before and after weight loss story has two chapters. The first started with gastric sleeve surgery in 2018. The second followed the birth of her son in 2022, and it’s the one still pulling the loudest comments online. Here’s what she has said herself, in order, plus the medical context most articles skip.
- Kelly Osbourne lost about 85 pounds after gastric sleeve surgery in 2018 and confirmed it in 2020.
- She credits surgery plus eating changes, exercise, therapy, and sobriety.
- Her weight changed again after her 2022 pregnancy, including gestational diabetes.
- She has denied taking Ozempic for her recent weight loss and has denied plastic surgery.
- Gastric sleeve surgery removes about 80% of the stomach and carries real risks.
- Public concern about her health in 2025 is reported speculation, not confirmed.
How Did Kelly Osbourne Lose Weight?
Kelly Osbourne had gastric sleeve surgery around 2018 and lost about 85 pounds. She publicly confirmed the surgery in August 2020. She has credited eating changes and exercise too, and she has denied using Ozempic for her recent weight loss.
The 2018 surgery
In August 2020, Osbourne said she’d had the surgery “almost two years ago” on the Hollywood Raw podcast. She didn’t dress it up. She called it the best thing she’s ever done and said she would never lie about it.
That honesty matters. Plenty of celebrities let fans assume it was all workouts.
What she changed around it
Surgery was only part of it. Osbourne has said therapy and quitting alcohol contributed heavily to her results. Reports also credit her with disciplined eating and intense workouts.
thelist
aol
Kelly Osbourne’s Weight Loss Timeline
| When | What Happened |
|---|---|
| 2018 | Kelly Osbourne underwent gastric sleeve surgery. |
| August 2020 | She confirmed the surgery and revealed that she had lost about 85 pounds. |
| 2022 | Her son, Sidney, was born. |
| April 2024 | She told Extra that she had not taken Ozempic. |
| July 2025 | Her father, Ozzy Osbourne, died. |
| December 2025 | She publicly pushed back against comments about her appearance. |
What Gastric Sleeve Surgery Does
Most “before and after” posts treat the surgery like a magic step. It isn’t.
Mayo Clinic says a sleeve gastrectomy removes about 80% of the stomach, leaving a tube-shaped stomach about the size of a banana. You feel full on much less food.
It works. But it’s major surgery, and Mayo lists both short-term and long-term risks, some very rarely fatal. It’s also possible to regain weight or not lose enough.
Then there are the side effects people don’t see in photos. In the first three to six months, rapid weight loss can bring changes like hair thinning. Doctors typically recommend it only after diet and exercise haven’t worked.
Her story fits that pattern: surgery as a tool, not a finish line.
The Second Chapter: Pregnancy and Postpartum
Her weight story didn’t end in 2020.
After Sidney was born in 2022, Osbourne dealt with gestational diabetes and reportedly gained 100 pounds during pregnancy. That’s a big number, and it explains why her weight moved again.
hola
On Scheana Shay’s podcast, she said she was on a mission to lose the baby weight, then kept going and went a little too far before stopping.
I’d flag that admission. It’s the part of her story that’s easy to skip past, and it’s the most useful one if you’re thinking about your own goals.
There was also the skin. She told Extra her stomach had stretch marks and had lost elasticity after the baby. Reports say she turned to non-surgical treatments like EMFACE and EMSCULPT.
Did Kelly Osbourne Take Ozempic?
This is the most-searched rumor, so let’s keep it straight.
In April 2024, she told Extra that people assume she took Ozempic, but she didn’t. She added that her mom took it. That’s a reference to Sharon Osbourne, who has spoken openly about it.
One wrinkle: reports note she has also said she used semaglutide injections briefly in the past. Accounts online conflict on the timing, so I’d treat any exact date as unconfirmed. What’s consistent is her denial that a GLP-1 drug drove her recent weight loss.
What About Plastic Surgery Rumors?
Her face looks different in photos from a decade ago. Losing 85 pounds changes a face.
She addressed this directly in a May 2021 Instagram clip, saying she has not had plastic surgery. Some pages online claim specific cosmetic procedures, but I couldn’t confirm those through reliable reporting, so I’m leaving them out.
Grief, Scrutiny and Concern
By late 2025, the conversation turned darker.
After her father died, commenters wrote “Are you ill” and “Get off Ozempic.” She answered that her dad had just died and she was doing her best. She also admitted she wasn’t doing great and called it the hardest thing she’d been through.
Reporting says people close to her have worried about her dramatic weight loss. That’s reported concern, not a diagnosis, and nobody outside her circle knows her health. A photo can’t tell you.
hola
What Her Story Can (and Can’t) Teach You
A before-and-after photo shows a result. It hides the surgery recovery, the loose skin, the therapy, and the grief.
Three things stand out to me:
- Surgery is a tool. It makes eating easier. It doesn’t fix habits or emotions.
- Stopping matters. She’s said herself she pushed too far after pregnancy.
- Strangers shouldn’t diagnose. Rumors about drugs or illness usually say more about the commenter.
If you’re considering weight-loss surgery or medication, talk to a doctor about your own health. This article isn’t medical advice.
FAQs
How much weight did Kelly Osbourne lose?
About 85 pounds after her 2018 gastric sleeve, according to multiple reports. Some outlets say nearly 100 pounds across her journey, and she regained weight during pregnancy.
Did Kelly Osbourne have gastric sleeve surgery?
Yes. She revealed in August 2020 that she’d had the procedure almost two years earlier.
Did Kelly Osbourne use Ozempic?
She told Extra in 2024 that she did not. Reports add that she briefly used semaglutide at some point in the past.
Has Kelly Osbourne had plastic surgery?
She says no. She said so directly in a May 2021 Instagram clip. Her face has changed largely because of weight loss.
Why does Kelly Osbourne look so different?
Mostly weight loss, plus the effects of pregnancy, skin changes, and non-surgical treatments she’s discussed. Grief and stress in 2025 also drew attention to her appearance.
Sources
- Mayo Clinic: Sleeve gastrectomy
- AOL/People: Kelly Osbourne’s Weight Loss, Everything She’s Said
- Hola USA: Kelly Osbourne’s inner circle worried
- IBTimes UK: Kelly Osbourne grief and weight loss
- Women.com: Kelly Osbourne side-by-side photos
- The List: Kelly Osbourne “Ozempic neck”
💬 Comments