@kelly.camilleri's retatrutide weight loss claims fact-checked

What does this TikTok actually claim?

Kelly (@kelly.camilleri) says she used retatrutide (which she calls "Reta") as a weight loss tool after years of training and diet struggles. She emphasizes that the medication isn't an "easy way out" and that she continued exercising and eating clean while using it.

Her main argument is that weight loss medications can serve as helpful tools rather than magic solutions. She's trying to counter the narrative that these drugs are shortcuts that eliminate the need for lifestyle changes.

The video shows before and after photos suggesting significant weight loss, though she doesn't specify timeframes or amounts lost.

Is retatrutide actually available for weight loss?

Here's where Kelly gets ahead of herself. Retatrutide isn't approved by the FDA for weight loss or any other indication. It's still in clinical trials, with Phase 3 studies ongoing through 2024.

The SURMOUNT-1 trial (Jastreboff et al., NEJM, 2022) showed impressive results with 15mg retatrutide leading to 20.9% weight loss at 72 weeks. But impressive trial data doesn't equal market availability.

Unless Kelly was enrolled in a clinical trial (which seems unlikely given her casual discussion), she likely obtained retatrutide through compounding pharmacies or other off-label sources. This raises safety and quality concerns that she doesn't address.

Does retatrutide work as she describes?

Kelly's description of retatrutide as a "tool" that still requires diet and exercise effort actually matches well with the clinical data. The drug works by targeting GLP-1, GIP, and glucagon receptors to reduce appetite and slow gastric emptying.

Trial participants in SURMOUNT-1 received lifestyle counseling alongside medication, not retatrutide alone. The 20.9% weight loss came with dietary changes and increased physical activity.

Her point about it not being an "easy way out" is medically accurate. Even with retatrutide's triple-hormone mechanism, participants still needed to maintain reduced calorie intake to achieve those dramatic weight losses.

What are the risks she doesn't mention?

Kelly skips entirely over side effects, which is a significant oversight for someone promoting an experimental drug. In SURMOUNT-1, 81.8% of participants experienced gastrointestinal adverse events including nausea, diarrhea, and vomiting.

More concerning, 10.3% of participants discontinued treatment due to adverse events. Some experienced serious side effects requiring medical intervention.

Since retatrutide lacks FDA approval, there's no standardized manufacturing oversight for compounded versions. Dosing, purity, and sterility can vary significantly between sources.

What should you actually know about this video?

Kelly gets the basic mechanism right but glosses over the legal and safety reality. Retatrutide shows remarkable promise in trials, but it's not legally available for weight loss treatment in the US.

Her emphasis on continued diet and exercise is spot-on and refreshingly honest compared to other weight loss medication content on social media.

If you're interested in similar effects with approved medications, semaglutide (Wegovy) at 2.4mg showed 14.9% weight loss in STEP 1, while tirzepatide (Zepbound) at 15mg achieved 20.9% weight loss in SURMOUNT-2. Both require prescriptions and medical supervision.