At 3 months
| Cohort | Avg loss (kg) | Avg loss (%) |
|---|---|---|
| Top 10% of patients | 16 kg | 15.4% |
| Top 25% of patients | 12 kg | 12.0% |
| Typical patient | 8 kg | 8.6% |
Real patient results
How Much Weight Do People Lose on Mounjaro?
Real-world results from 213,263 UK patients treated through Simple Online Pharmacy.
Observed outcomes from 213,263 UK patients treated through Simple Online Pharmacy. Not a personal prediction. Individual results may vary.
Mounjaro weight loss outcomes
People respond to Mounjaro differently. This section shows observed outcomes across Simple Online Pharmacy patient groups at 3, 6, and 12 months.
At 6 months
| Cohort | Avg loss (kg) | Avg loss (%) |
|---|---|---|
| Top 10% of patients | 22 kg | 21.6% |
| Top 25% of patients | 17 kg | 17.4% |
| Typical patient | 12 kg | 12.8% |
At 12 months
| Cohort | Avg loss (kg) | Avg loss (%) |
|---|---|---|
| Top 10% of patients | 30 kg | 28.2% |
| Top 25% of patients | 23 kg | 22.5% |
| Typical patient | 16 kg | 16.4% |
Mounjaro weight loss by age at 12 months
| Age band | Average loss (kg) | Average loss (%) |
|---|---|---|
| 18-24 | 21.0 kg | 19.0% |
| 25-34 | 17.6 kg | 16.6% |
| 35-44 | 16.9 kg | 16.5% |
| 45-54 | 17.0 kg | 16.8% |
| 55-64 | 16.8 kg | 16.8% |
| 65+ | 17.1 kg | 17.5% |
The data presented is based on anonymised real-world outcomes from 213,263 patients treated through the Simple Online Pharmacy programme. Patients lost an average of 7 kg (around 7% body weight) over an average treatment duration of 4.6 months.
The analysis includes patients who started treatment, including non-completers, to provide a broad view of observed outcomes across the programme.
Typical patient refers to the midpoint of observed outcomes.
These findings are observational and intended to show overall patterns across large patient groups, not personal predictions or medical advice. Individual results may vary.
What these Mounjaro results show
Our real-world data shows that weight loss builds over time, but results vary considerably between patients. The typical patient in our 12-month data lost 16kg (16.4% of body weight), while one in four lost 23kg (22.5%) or more.
Medication is only part of a weight-loss journey. Individual outcomes can be influenced by factors including treatment duration, dose, starting weight, lifestyle and adherence.
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