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How fast will I lose weight on GLP-1s and is it sustainable?

ClaudevalidationCollected Sep 23, 2026, 11:30 UTC

Verbatim response from Claude

Weight Loss on GLP-1 Medications

Typical Results

  • Most people lose 1-2 lbs per week in the early months
  • Total loss over 12-18 months averages:
    • Ozempic/Wegovy (semaglutide): ~15-20% of body weight
    • Mounjaro/Zepbound (tirzepatide): ~20-25% of body weight (currently the strongest option)
    • Victoza/Saxenda (liraglutide): ~5-8% (older, less effective)

Sustainability - The Honest Answer

The tricky part: Most people regain significant weight if they stop the medication. Studies show ~2/3 of lost weight returns within a year of stopping.

For sustainable results, consider:

  • Noom Med or Calibrate - combine medication with coaching/lifestyle programs
  • Found or Ro Body - telehealth platforms with behavioral support built in
  • Working with an obesity medicine specialist rather than just a primary care doctor

What Actually Helps Long-Term

  • Building muscle through strength training while losing
  • Developing eating habits that work with the medication
  • Having a plan for maintenance dosing or tapering

Bottom Line

Think of it more like a chronic medication than a quick fix - similar to blood pressure treatment. The results can be dramatic, but the lifestyle work alongside it determines how lasting they are.

Want recommendations on how to access these medications?

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