How much weight can you lose on tirzepatide?
The honest answer is that it depends, and the real numbers are easy to find. Here is what tirzepatide weight loss looked like in the clinical trial that the figures usually come from, broken out by dose, plus the part most pages skip: these are averages under study conditions, results build over months, and individual outcomes vary widely.
Medically reviewed by Dr. Pat Taylor, Board-certified physicianReviewed June 2026
| Weekly dose | Average weight loss (trial) | Note |
|---|---|---|
| 5 mg | ~15% | Trial average over 72 weeks at the 5 mg weekly dose, alongside diet and activity changes. |
| 10 mg | ~20% | Trial average over 72 weeks at the 10 mg weekly dose, alongside diet and activity changes. |
| 15 mg | ~21% | Trial average over 72 weeks at the highest 15 mg weekly dose, alongside diet and activity changes. |
Crossing is $149 a month, all in. The same price at every dose, billed monthly, cancel anytime.
Where these numbers come from
The weight-loss figures above are from the SURMOUNT-1 trial published in the New England Journal of Medicine in 2022. It studied tirzepatide in adults with obesity or overweight (without diabetes) over 72 weeks, taken as a once-weekly subcutaneous injection alongside lifestyle changes (diet and increased physical activity). Participants were assigned to 5 mg, 10 mg, or 15 mg weekly after a gradual increasing-dose plan.
On average, participants lost roughly 15% of their body weight on the 5 mg dose, around 19% to 20% on 10 mg, and about 21% to 22.5% on 15 mg, compared with a much smaller change in the placebo group. The table above rounds those to simple ranges. These are trial averages under structured study conditions, not a guarantee of what any one person will experience.
Why your result may be different
An average hides a lot of variation. In a study, some people lose far more than the headline number and some lose noticeably less. Your own result depends on several things working together over time:
- Dose, and how far up the increasing-dose plan you and your provider go.
- Diet, including overall calories and protein.
- Physical activity and how much muscle you keep.
- Sleep and stress, which affect appetite and recovery.
- Starting weight, since percentages and total pounds are not the same thing.
- Consistency, meaning staying on treatment and habits week after week.
None of this is meant to talk you out of realistic expectations. It is meant to set them. If you want to understand the mechanism behind the appetite changes, read how tirzepatide works.
Results build over months, not overnight
The trial measured outcomes over about 72 weeks, and that timeline matters. Tirzepatide is started at a low dose and stepped up over time on an increasing-dose plan, so the early weeks are usually the smallest part of the change. The bigger reductions accumulate as the dose increases and as the weeks add up. If you are looking for a fast before-and-after, this is the wrong tool. If you are looking for steady progress you can sustain, the slow build is the point.
For the full dose-by-dose timeline, see the tirzepatide dosage chart. Your actual pace is set by a licensed provider based on how you respond, and may be slower than the chart.
What you get with Crossing
Crossing is compounded tirzepatide at one flat $149 a month, every dose, all in. That price includes the medication, provider review, the increasing-dose plan, and shipping. It is billed monthly with a 30-day money-back guarantee, and you can cancel anytime. There is no dose-based upcharge, so moving up the plan does not change your price.
Getting started is a roughly 10-minute online visit. A provider licensed in your state reviews your information, and if tirzepatide is appropriate, your medication ships. It is prescription-only, so the visit comes first. Read more about the compounded tirzepatide product.
Common questions about tirzepatide weight loss
How much weight can you lose on tirzepatide?
It varies by person. In the SURMOUNT-1 trial published in the New England Journal of Medicine (2022), adults with obesity or overweight (without diabetes) lost an average of about 15% of body weight on 5 mg, about 20% on 10 mg, and about 21% to 22.5% on 15 mg over 72 weeks, alongside diet and activity changes. Those are study averages under trial conditions, not a promise. Some people lose less and some lose more.
How long does it take to see results on tirzepatide?
Results build gradually over many weeks and months, not overnight. The dose usually starts low and steps up over time on an increasing-dose plan, so most of the trial weight loss accumulated across roughly 72 weeks. Early weeks are often modest. Consistency over time, plus diet, activity, and sleep, drives the outcome.
Will I lose as much weight as the trial averages?
Maybe more, maybe less. The trial figures are averages across many participants under structured study conditions with lifestyle support. Your own result depends on dose, diet, activity, sleep, starting weight, and how consistent you are. A licensed provider determines whether tirzepatide is appropriate for you and sets your dose.
Does Crossing charge more for a higher dose?
No. Crossing is one flat $149 a month at every dose, and the increasing-dose plan is included. Whether you are on 5 mg or 15 mg, the price is the same. Billed monthly, cancel anytime, with a 30-day money-back guarantee.
This article is for general education and is not medical advice. Weight-loss results vary and are not guaranteed. Compounded tirzepatide is prescription-only and requires review by a licensed provider. See our medical disclaimer.