Wegovy results: the weight loss timeline

Month-by-month, from the first injection to the year-one plateau

Quick read · 5 min

Last reviewed: April 2026Every claim linked to source

In the STEP 1 trial, people on semaglutide 2.4mg weekly lost an average of 14.9% of their starting body weight over 68 weeks. That is roughly 34 lbs for a 230-lb person. But the loss is not evenly spread — the first 6–8 weeks feel slow, months 2–8 are the steepest part of the curve, and most people plateau somewhere between month 9 and month 12.

In simple terms:
  • •Average total loss: 14.9% of starting body weight at 68 weeks
  • •First 4 weeks: 2–5 lbs (appetite change, some water weight)
  • •Months 2–6: the fastest phase — most people lose 8–12% here
  • •Months 6–12: slower burn, reaching the final 3–5%
  • •Most people plateau by month 12 and maintain at that level
  • •Roughly 1 in 3 people lose 20% or more (strong responders)

Based on clinical trials · No rankings · Every claim linked to source

The shape of the weight loss curve

Slow start, steep middle, gradual plateau. This is the average curve from STEP 1 trial.

0%5%10%15%20%25%Start3mo6mo9mo12mo

Source: STEP 1 trial (Wilding et al., NEJM 2021) — 1,961 participants, 68 weeks, semaglutide 2.4mg weekly vs placebo

Milestones: real pounds at each point

Averages from trial data. Individual results vary, but these give you a realistic picture of what to expect.

Time
% of body weight
200 lb person
250 lb person
1 month
~2%
~4 lbs
~5 lbs
3 months
~7%
~14 lbs
~17 lbs
6 months
~12%
~24 lbs
~30 lbs
9 months
~14%
~28 lbs
~35 lbs
12 months
~14.9%
~30 lbs
~37 lbs
2 years
~15% (maintained)
~30 lbs
~37 lbs

Weights rounded to the nearest pound. Based on starting weights of 200 lb and 250 lb.

The four phases of the year

Knowing where you are in the arc helps you manage expectations — and stops you from panicking when the scale stalls.

1
Weeks 1–8
The slow start
  • •Typical loss: 2–5 lbs
  • •You are still titrating up — the dose is not yet clinically active
  • •Appetite starts to shift, food noise may quieten
  • •Side effects (nausea, fatigue) often peak here
  • •Do not measure success yet
2
Months 2–6
The steep descent
  • •The fastest phase — most of your total loss happens here
  • •You have reached a clinically active dose
  • •Typical loss: 1.5–2.5 lbs per week on average
  • •Scale drops are less linear — some flat weeks are normal
  • •This is when clothes start fitting differently
3
Months 6–12
The slow burn
  • •Loss slows to 0.5–1 lb per week on average
  • •You are chasing the last few percentage points
  • •Resistance training and protein become more important
  • •Small plateaus (1–3 weeks of no movement) are normal
  • •Your maintenance identity starts to form
4
Month 12+
The plateau
  • •Weight stabilises — this is the new set point, not failure
  • •Your body has adapted to a lower energy state
  • •Staying on treatment keeps the weight off
  • •Stopping typically means regaining 50–70% within a year
  • •Long-term: most people maintain their loss on-drug

The first month: managing expectations

Why the first few weeks feel like nothing

You are on the starting dose. That dose is not designed to cause weight loss — it is designed to let your gut adapt to the drug so you do not vomit for a week straight. Weight loss really begins when you reach the first clinically active dose, which is 4–12 weeks in depending on the drug.

The scale may still move 2–5 lbs in the first month, mostly from appetite reduction and water weight. That is normal and expected. The steep part of the curve comes later.

Not everyone gets the average

Trial averages hide a wide range. Here is how participants were distributed at 68–72 weeks.

~32%
Strong responders

lost 20% or more

~69%
Average responders

lost 10% or more

~87%
Modest responders

lost 5% or more

Percentages overlap — a "10% responder" is also counted in the "5% responder" group.

Hitting the plateau

Plateauing is not the same as failing
When you stop losing weight around month 12, the drug has not stopped working. Your body has adapted. At lower body weight, you burn fewer calories at rest — a 200-lb body does not need the same fuel as a 250-lb body. The plateau is where the drug's appetite suppression now matches your new maintenance needs. If staying on treatment keeps you at your new weight, that is success, not failure.

Keep reading

Full Semaglutide overview →Dosage guide →Titration schedule →Side effects →What happens if you stop →Compare results head-to-head →

Based on clinical trials · No rankings · Every claim linked to source

Last reviewed: March 2026

Medical disclaimer: This website is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any treatment.