GLP-1 Weight Loss Estimator
Visualize your potential journey. Based on the gold-standard STEP and SURMOUNT clinical trials.
Your Details
lbs
Projected Loss
-30 lbs
Estimated Weight
170.2 lbs
Study Duration
104 Weeks
Estimated Trajectory
Based on clinical trial data for Wegovy
What the data says
According to the STEP 5 Trial (104 weeks), typical patients lost an average of 14.9% of their body weight.
Data sources: STEP 5 (Wegovy 2-year) & SURMOUNT-1.
Based on Peer-Reviewed ResearchData Updated 2024
Why weight loss isn't linear
You'll notice the curve is steeper at the beginning and flattens out over time. This is normal.
- Titration Phase (Weeks 1-16): You start on a low dose to let your body adjust. Weight loss may be slower here but accelerates as you reach therapeutic doses.
- Rapid Loss Phase (Months 3-9): Often the period of fastest change as medication levels maximize in your system.
- The Plateau (Year 1+): The body eventually adapts to the new set point. This is where lifestyle habits become the primary driver for maintenance.
Frequently Asked Questions
This estimator uses data from the FDA-approved clinical trials (STEP 1 for Wegovy/Ozempic and SURMOUNT-1 for Zepbound/Mounjaro). It projects the "average" weight loss curve. However, individual results vary significantly based on genetics, lifestyle, dosage adherence, and starting BMI. Some users are "super-responders" losing more, while others may lose less.
Different medications work on different receptors. Semaglutide (Wegovy, Ozempic) targets GLP-1 receptors, while Tirzepatide (Zepbound, Mounjaro) targets both GLP-1 and GIP receptors, which clinical trials suggest may lead to greater average weight loss.
Medication is a tool, not a cure. The most successful patients combine medication with a high-protein diet (to preserve muscle), resistance training, adequate sleep, and hydration. The estimator assumes these standard lifestyle interventions are being followed.
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Disclaimer
Not Medical AdviceThe content on this page is for informational and educational purposes only and should not be taken as medical advice, diagnosis, or treatment. Always consult with your physician regarding your medication, dosage, and side effects.
No Silver BulletThis calculator provides an estimate based on population averages. It does not predict your individual results, which can vary significantly based on genetics, adherence, diet, and biology.
Side EffectsMedications like Ozempic, Wegovy, Mounjaro, and Zepbound can cause side effects such as nausea, vomiting, and gastrointestinal discomfort. If you experience severe side effects, contact your doctor immediately.