How much weight a GLP-1 takes off, and what each pound costs

By John Samaras, EditorPrices checked September 28, 2026

In each drug's main trial, people lost 11.1 to 20.9 percent of their starting weight on average. From 220 pounds, each pound lost cost $141 to $215 at the maker's own cash price. These are trial averages, not a promise.

Two cash programs to check.

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  1. Strut Health$149 a month, with auto-refillcompounded semaglutideCheck price →Semaglutide shot or lozenge, then a health questionnaire
  2. Shed$199 a monthcompounded semaglutideCheck price →Every medication is listed with a starting price

At 220 pounds, drug by drug

Drug and doseAverage lostEach pound cost
Zepbound 15 mg46 lb (20.9%)$171
Zepbound 5 mg33 lb (15.0%)$215
Wegovy shot 2.4 mg33 lb (14.9%)$180
Wegovy pill 25 mg30 lb (13.6%)$141
Foundayo 17.2 mg24 lb (11.1%)Pounds only

Each pound cost is what the whole trial cost at the maker's price, divided by the average pounds lost. Pick your drug below for other starting weights.

Zepbound (tirzepatide, a weekly shot)

SURMOUNT-1, published June 4, 2022: people on 15 mg lost 20.9 percent of their starting weight on average over 72 weeks. The placebo group lost 3.1 percent.

At LillyDirect, 72 weeks is 18 four-week boxes, $7,882 in all: $299 for 2.5 mg, $399 for 5 mg, $449 for 7.5 mg and up.

Starting weightAverage lostEach pound cost
180 lb38 lb$207
200 lb42 lb$188
220 lb46 lb$171
240 lb50 lb$158
260 lb54 lb$146
280 lb59 lb$134
300 lb63 lb$125

On 10 mg the average was 19.5 percent, for the same $7,882. On 5 mg it was 15.0 percent, for $7,082, which is $215 a pound from 220 pounds. The $449 dose price holds only if you refill within 45 days.

Wegovy shot (semaglutide, a weekly shot)

STEP 1, published February 10, 2021: people on 2.4 mg lost 14.9 percent of their starting weight on average over 68 weeks. The placebo group lost 2.4 percent.

At NovoCare, 68 weeks is 17 four-week boxes at $349 each, $5,933 in all.

Starting weightAverage lostEach pound cost
180 lb27 lb$220
200 lb30 lb$198
220 lb33 lb$180
240 lb36 lb$165
260 lb39 lb$152
280 lb42 lb$141
300 lb45 lb$132

Averages hide a wide spread. In STEP 1, half the people on the drug lost 15 percent or more, and about 1 in 7 lost less than 5 percent.

Wegovy pill (semaglutide, a daily pill)

OASIS 4, published September 18, 2025: people on 25 mg lost 13.6 percent of their starting weight on average over 64 weeks. The placebo group lost 2.2 percent.

At NovoCare, 64 weeks is 15 thirty-day bottles, $4,235 in all: $149 for 1.5 mg, $199 for 4 mg, $299 for 9 and 25 mg.

Starting weightAverage lostEach pound cost
180 lb24 lb$176
200 lb27 lb$157
220 lb30 lb$141
240 lb33 lb$128
260 lb35 lb$121
280 lb38 lb$111
300 lb41 lb$103

Foundayo (orforglipron, a daily pill)

ATTAIN-1, published September 16, 2025: people on 17.2 mg lost 11.1 percent of their starting weight on average over 72 weeks. The placebo group lost 2.1 percent. Figures from the FDA label.

Starting weightAverage lost
180 lb20 lb
200 lb22 lb
220 lb24 lb
240 lb27 lb
260 lb29 lb
280 lb31 lb
300 lb33 lb

Compounded semaglutide and tirzepatide

Compounded semaglutide, a pharmacy-made version that is not FDA-approved and is not Wegovy or Ozempic, costs $149 a month, with auto-refill, at Strut Health. Compounded tirzepatide, a pharmacy-made version that is not FDA-approved and is not Zepbound or Mounjaro, costs $149 a month, with auto-refill, at Strut Health.

The clinical trials on this page tested the brand-name drugs, not compounded versions.

These pounds assume you stay on

In the clinical trials that took people off the drug, most of the weight came back within a year. What happens when you stop a GLP-1 has all three of those clinical trials, and what year one and year two cost on each drug.

Frequently asked questions

How much weight can you lose on Zepbound?
In SURMOUNT-1, published June 4, 2022, people on 15 mg lost 20.9 percent of their starting weight on average over 72 weeks, and people on 5 mg lost 15.0 percent. The placebo group lost 3.1 percent. From 220 pounds, 20.9 percent is 46 pounds. These are averages, not a promise.
How much weight can you lose on the Wegovy pill?
In OASIS 4, published September 18, 2025, people on the 25 mg pill lost 13.6 percent of their starting weight on average over 64 weeks, against 2.2 percent on placebo. From 220 pounds, that is 30 pounds.
What does it cost to lose a pound on a GLP-1?
From 220 pounds, each pound lost cost $141 to $215 at the maker's own cash price over each trial. The Wegovy pill at 25 mg cost least for each pound ($4,235 over 64 weeks at NovoCare). Zepbound at 5 mg cost most for each pound ($7,082 over 72 weeks at LillyDirect). Prices checked September 28, 2026.

Sources

Evidence checked September 28, 2026

Every figure above is taken from the document beside it, the FDA label or the trial that produced it, so you can read the source instead of trusting us. No clinician reviews these pages. What that means.

7 documents

  1. Zepbound, average loss at 5, 10 and 15 mg over 72 weeksSURMOUNT-1, Jastreboff AM et al. N Engl J Med 2022;387(3):205-216
  2. Wegovy shot, average loss at 2.4 mg over 68 weeks, and the spread behind itSTEP 1, Wilding JPH et al. N Engl J Med 2021;384(11):989-1002
  3. Wegovy pill, average loss at 25 mg over 64 weeksOASIS 4, Wharton S et al. N Engl J Med 2025;393(11):1077-1087
  4. Foundayo, the trial behind the labelATTAIN-1, Wharton S et al. N Engl J Med 2025;393(18):1796-1806
  5. Foundayo, average loss at 17.2 mg over 72 weeks, and its dose climbFDA prescribing information for Foundayo, Table 6, Trial 1 (DailyMed, August 2026)
  6. Wegovy shot and pill dose climbsFDA prescribing information for Wegovy, injection and tablets (DailyMed, revised June 2026)
  7. Zepbound dose climbFDA prescribing information for Zepbound (DailyMed, revised August 2026)
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