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GLP Index / Weight Loss Timeline

How much weight will you really lose?

Your projected curve, week by week, calculated from the same clinical-trial data your prescriber reads. Move the inputs — the chart and milestones update live. Nothing is sent anywhere.

At week 68 (end of trial)
187lbs
32.8 lbs · 14.9% of starting weight
You'll likely hit your goal around
wk 51
≈ 12 months from your first dose

Your projected curve

STEP 1 mean. Hover the chart for any week's projected weight.

STEP 1 · Wegovy

Key milestones

Based on the STEP 1 trial average. Individual response may differ.

Week 4Starter dose period ends. Mild loss begins.1.2%217 lbs
Week 16Side effects typically settle. Curve steepens.5.8%207 lbs
Week 28About one-third of the way to maintenance-dose effect.9.5%199 lbs
Week 51Projected to reach your goal weight.13.8%190 lbs
Week 68Trial maintenance plateau approaches.14.9%187 lbs

This is an average, not a guarantee. In the STEP 1 trial, about 32% of participants lost more than 20% of body weight, while ~14% lost less than 5%. Your response depends on adherence, diet, activity, baseline metabolism, and other factors only your prescriber can assess.

Trial sourceSTEP 1 · Wegovy (Semaglutide 2.4mg). N Engl J Med 384:989 (2021)

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