Semaglutide curbs appetite in 1-2 weeks, many lose 3-5 lbs in month one and 5-10% by month 3. A month-by-month timeline of what to expect, with trial data.
Last updated September 15, 2026
Reviewed for medical accuracy by Francheska Capistrano, RMT, MPH · Medical Content Reviewer
Clinically checked Checked · Author: Top Weight Loss Research Team · Our review process
Key points
Most people notice semaglutide within two weeks, and the first sign is a quieter appetite. You may fill up faster at meals, think about food less, and find that cravings for sweets and processed snacks fade.
Because you start on the lowest dose, these effects are usually mild. Our first month guide covers this stage in more depth.
The two providers our editors recommend first, with the same checked prices and scores used in our full ranking.
Exceptional
Treatments offered
Compounded semaglutide injection (GLP-1) · Compounded tirzepatide injection (GLP-1 + GIP) · Online doctor review and prescription · Dose changes through the patient portal
Starting price
$79$69/month
*Compounded medications are not FDA-approved.
from $69/month
embody prescribes compounded semaglutide at $69/mo and tirzepatide at $119/mo online, ships in 1-2 days, and requires no insurance. Trustpilot: 3.8 from 9,604 reviews.
Read full embody review
Exceptional
Treatments offered
Compounded semaglutide injection (GLP-1) · Compounded tirzepatide injection (GLP-1 + GIP) · Brand-name Ozempic, Zepbound and Wegovy · Once-weekly injection schedule
Starting price
$199$89/month
*Compounded medications are not FDA-approved.
from $89/month
altRx sells compounded semaglutide from $89/month and tirzepatide from $149/month at a flat price per dose, plus brand-name Ozempic, Zepbound and Wegovy. Self-pay, no insurance needed.
Read full altRx reviewYes. As you near your maintenance dose, weight keeps coming off but often at a slower rate than in months 2-3, because your body is adjusting.
People who eat plenty of protein and strength train regularly tend to keep the most momentum. If the scale stops moving, our guide to getting past a plateau can help.
Each provider's published semaglutide plan, sorted from lowest price, with the terms listed under every price.
GLP-1 medication is prescription-only: a licensed clinician has to decide it is appropriate, and it is not a fit for everyone. Side effects are possible, and they tend to show up in the first few weeks while your body adapts.
Results are usually best when the medication is paired with simple daily habits, such as balanced meals and regular movement.
For both safety and lasting progress, pick a provider that screens you properly before prescribing and keeps following up once treatment starts.
In clinical trials, results peaked at 68 weeks (roughly 16 months), with participants losing 15% of body weight on average. In practice, most patients reach their best results between months 9 and 15.
Once you hit your goal, work out a maintenance plan with your provider. Some people move to a lower dose instead of stopping completely.
Yes. People who pair semaglutide with regular exercise, strength training in particular, tend to see quicker results that last longer.
Exercise also helps you keep lean muscle while losing weight, and that matters for your long-term metabolism. Our GLP-1 exercise guide has practical routines.
Which weight loss provider fits you best?
Our ranking compares the leading providers on price, clinical support and medication choices.
First Month on Weight Loss Medication: Week by Week
What the first 30 days on a GLP-1 look like, week by week: the first dose, early appetite changes, a typical 3-5 lb loss and how to handle nausea.
GuideSemaglutide Side Effects (2026): How to Manage Them
Semaglutide side effects by the numbers: nausea in about 40-44% of trial patients, when symptoms start and stop, warning signs that need care, and what helps.
GuideWho Qualifies for GLP-1 Weight Loss Medication?
GLP-1 eligibility explained: the BMI 30 (or 27 with a condition) rule, conditions that rule you out, drug interactions, age limits and how telehealth screening works.
Weight Loss Medication Without Insurance: 2026 Options
Zepbound vs Wegovy (2026): Results, Doses, Cost
Side-by-side comparisons with checked prices, the ones readers rely on most when choosing.
The medication facts on this page rest on FDA guidance and peer-reviewed clinical trials, while prices and plan terms come from what each provider publishes. Use this page as general information, not medical advice, and speak with a licensed clinician before you start any weight loss treatment.
