Question 1

How much weight do people lose on GLP-1 medications?

Accepted Answer

Clinical trials show average weight loss of about 15% of body weight on semaglutide (Ozempic/Wegovy) and about 20% on tirzepatide (Mounjaro/Zepbound) over 12 to 18 months. Individual results vary based on starting weight, diet, activity, and other factors. This is general information, not a prediction for any individual.

Question 2

What is the V-curve vs L-curve idea in weight loss?

Accepted Answer

It describes two trajectories. A V-shape is when people lose weight on medication but regain most of it after stopping. An L-shape is when people build durable habits during treatment, so their weight tends to stay down after tapering off.

Question 3

Do most people regain weight after stopping GLP-1 medications?

Accepted Answer

Studies suggest a large share of lost weight is regained within a year of stopping if no lifestyle changes are maintained. People who build sustainable nutrition and movement habits during treatment tend to maintain more of their progress.

Question 4

How can I keep weight off after stopping Ozempic or Mounjaro?

Accepted Answer

Build habits while the medication makes it easier: aim for your protein goals, keep a regular movement routine, track your meals, and taper gradually with your provider rather than stopping abruptly. A tool like Phaze can help you build these habits consistently.

Weight Loss Simulator for GLP-1 users.

Frequently asked questions.

Build habits that outlast the medication.