How does Wegovy work?
Wegovy · semaglutide · by Novo Nordisk
Reviewed by the WeighedHealth Editorial Team against primary clinical sources — FDA labeling, peer-reviewed trials, and specialty-society guidelines.
Content current as of July 2026; updated when guidance or availability changes.
Semaglutide mimics GLP-1, a gut hormone released after meals. It slows stomach emptying (you feel full longer), suppresses appetite (reduced food-noise signaling in the brain), and improves insulin sensitivity. The combined effect is sustained appetite reduction and meaningful weight loss for most patients.
Where to get Wegovy
Ro
from $149/mo- Best for insured patients
- Best for clinical oversight
Ro Body, branded GLP-1 weight care program
Hims
from $149/mo- Best for cash-pay
- Best for speed
Hims Weight Loss, branded GLP-1 on a monthly membership
More on Wegovy
- How much does Wegovy cost?
- Wegovy side effects
- Wegovy dosage chart and titration schedule
- Who qualifies for Wegovy?
- Wegovy drug interactions
- Wegovy and pregnancy: safety, planning, breastfeeding
- Wegovy and alcohol: what to know
- Wegovy missed dose: what to do
- Wegovy savings: coupons, manufacturer programs, lower-cost options
- ← Full Wegovy overview
People also ask
Frequently asked
How does Wegovy work in the body?+
Semaglutide mimics GLP-1, a gut hormone released after meals. It slows stomach emptying (you feel full longer), suppresses appetite (reduced food-noise signaling in the brain), and improves insulin sensitivity. The combined effect is sustained appetite reduction and meaningful weight loss for most patients.
How long until Wegovy starts working?+
Most patients notice appetite changes within 1-2 weeks. Meaningful weight or clinical change typically follows the full titration period (3-5 months).