New Year Weight Loss Goals: Why People Start GLP-1 Treatment in November
GLP-1 medicines start at a low dose and build up over months. Starting before the holidays means the slow, side-effect-prone first weeks are behind you when January arrives. Here is the realistic timeline.
People start GLP-1 treatment in November because the first weeks are a slow, low-dose warm-up. Semaglutide takes 16 weeks of dose steps to reach its full weight-loss dose, and tirzepatide climbs in 4-week steps too. Starting now means that by New Year you are already past the first dose increase instead of just beginning.
- Semaglutide for weight loss: 0.25 mg weekly for 4 weeks, then steps up every 4 weeks to 2.4 mg starting week 17.
- Tirzepatide for weight loss: 2.5 mg weekly for 4 weeks, then up by 2.5 mg at least every 4 weeks.
- The first month is mainly for getting used to the medicine, not for big results.
- Trial weight loss built over more than a year: about 15% on semaglutide 2.4 mg at 68 weeks and 15% to 21% on tirzepatide at 72 weeks.
- A November start puts you about 5 to 9 weeks in by January 1, depending on your start date.
The slow start is by design
Semaglutide and tirzepatide are not started at full strength. The FDA labels call for a low starting dose that goes up in steps, because stomach side effects like nausea, diarrhea and vomiting are most common early and right after each increase. Going slowly gives your body time to adjust.
| Weeks | Semaglutide (weekly) | Tirzepatide (weekly) |
|---|---|---|
| 1 to 4 | 0.25 mg | 2.5 mg |
| 5 to 8 | 0.5 mg | 5 mg |
| 9 to 12 | 1 mg | 7.5 mg, if your provider increases |
| 13 to 16 | 1.7 mg | 10 mg, if your provider increases |
| 17 and on | 2.4 mg maintenance | Up to 15 mg; maintenance can be 5, 10 or 15 mg |
This is the label schedule. Your provider may move more slowly if side effects are hard to tolerate, or keep you at a lower dose if it is working. Our semaglutide dosage chart and tirzepatide dosage guide go step by step.
A November start, week by week
Here is what the calendar looks like if you start in late November or the first days of December.
| When | Where you are | What it usually feels like |
|---|---|---|
| Late November | Week 1, lowest dose | Some people notice smaller appetite; others notice little. Mild nausea is common. |
| Thanksgiving to mid-December | Weeks 1 to 4 | Learning portion sizes and how rich food sits on the medicine. |
| Late December | First dose increase | Side effects can flare for a few days after the step up. |
| January 1 | About week 5 to 9 | Habits settling, appetite changes clearer, still early in the dose ladder. |
| Late March | About week 17 | On or near maintenance dose for semaglutide. |
| Next fall | About week 52 | The stretch of time when trial weight loss had mostly built up. |
Why November works for many people
- The warm-up overlaps a season you would eat more anyway. Smaller appetite during the holidays can make portions easier to manage.
- January starts with momentum. Instead of starting a new medicine and new habits on the same day, you are already a month in.
- Insurance and benefits reset in January. Some people use the end of the year to sort out what their plan covers, and others pay cash and do not want to wait.
- Provider review takes some time. Starting the process early leaves room for the online visit and shipping before the holiday rush.
- Holiday pricing. Some programs, including Rx.com, run a Black Friday price. It only matters if the treatment is right for you in the first place.
The holiday challenge
The trade-off is that the first weeks on a GLP-1 fall right on the biggest meals of the year. Because these medicines slow how fast your stomach empties, a large or fatty meal can cause nausea, fullness or heartburn. Our guide to managing GLP-1 side effects over Thanksgiving dinner covers portions, drinks and timing.
💡 Plan your dose increases
If a scheduled increase lands the day before a big event or a trip, ask your provider ahead of time whether to keep the date. Do not change your schedule on your own.
Realistic expectations
In the STEP 1 trial, adults on semaglutide 2.4 mg lost an average of about 14.9% of body weight over 68 weeks, versus 2.4% on placebo. In SURMOUNT-1, tirzepatide led to average losses of about 15% to 21% over 72 weeks, depending on dose. Those numbers came with diet and activity counseling, and they built gradually over more than a year.
So a fair goal for January 1 is not a number on the scale. It is being on treatment, tolerating it, and having better eating habits in place. If you stop the medicine, weight often comes back, which is why it is treated as a long-term therapy.
Paying for it
Before you pick a plan, check the options that might cost you less. If your insurance covers a brand-name GLP-1, a manufacturer savings card can bring the copay down a lot. Medicare Part D members may qualify for the Medicare GLP-1 Bridge, a $50 copay that runs from July 1, 2026 through December 31, 2027. Manufacturers also sell some brand-name products directly to self-pay patients. Our first-month GLP-1 cost guide walks through the numbers.
Getting treatment through Rx.com
Rx.com offers compounded semaglutide from $99/month and compounded tirzepatide from $149/month on a 12-month plan. The price includes the online provider visit, medication at any prescribed dose, supplies and cold shipping, and it is one flat price at every dose. Nothing is charged until a licensed provider approves you, and plans do not auto-renew.
Now through December 1, 2026, code BF2026 takes 20% off every plan:
| 12-month plan | Regular | With BF2026 | Per month |
|---|---|---|---|
| Semaglutide | $1,188 | $950.40 paid up front | $79.20 |
| Tirzepatide | $1,788 | $1,430.40 paid up front | $119.20 |
Monthly, 3-month and 6-month plans get the same 20% off. Compounded medications are not FDA-approved. Not available in Alaska, Louisiana or Mississippi. See how to use code BF2026 or start with our weight-loss check.
🚨 When to Contact Your Healthcare Provider
Call your provider right away if any of these happen. Call 911 for trouble breathing, fainting or severe pain.
- Severe belly pain that will not go away, with or without vomiting, especially if it spreads to your back: possible pancreatitis.
- Pain in the upper right belly, fever, or yellow skin or eyes: possible gallbladder problem.
- Vomiting or diarrhea that keeps you from drinking fluids: risk of dehydration and kidney injury.
- Swelling of the face, lips or throat, hives or trouble swallowing: possible allergic reaction.
- A lump in the neck, hoarseness or trouble swallowing: tell your provider promptly.
- New or worsening depression or thoughts of self-harm: get help right away.
Frequently Asked Questions
How much weight can I lose on a GLP-1 by New Year?
Not much should be expected in the first 5 to 9 weeks, because you are still on low starting doses. Trial results built over more than a year.
How long until I reach a full dose?
On the label schedule, semaglutide reaches its 2.4 mg maintenance dose in week 17. Tirzepatide goes up by 2.5 mg at least every 4 weeks, and the maintenance dose can be 5, 10 or 15 mg.
Is it a bad idea to start a GLP-1 right before Thanksgiving?
Not necessarily. You will need smaller portions and slower eating at holiday meals. Many people find a smaller appetite helps during the season.
Can I wait until January to start?
Yes. There is no medical reason to start in November. The main benefit is that the slow early weeks are behind you sooner.
When does the BF2026 code work?
Now through December 1, 2026. After that, regular prices apply.
What happens if I stop the medicine?
Weight often comes back after GLP-1 medicines are stopped, so they are usually treated as long-term therapy. Talk to your provider before stopping.
Sources
- Novo Nordisk. Wegovy (semaglutide) injection, Prescribing Information. novo-pi.com
- Eli Lilly and Company. Zepbound (tirzepatide) injection, Prescribing Information. uspl.lilly.com
- Wilding JPH, et al. Once-weekly semaglutide in adults with overweight or obesity (STEP 1). N Engl J Med. 2021;384:989-1002. nejm.org
- Jastreboff AM, et al. Tirzepatide once weekly for the treatment of obesity (SURMOUNT-1). N Engl J Med. 2022;387:205-216. nejm.org
- Centers for Medicare & Medicaid Services. Medicare GLP-1 Bridge. cms.gov
- U.S. Food and Drug Administration. FDA's concerns with unapproved GLP-1 drugs used for weight loss. fda.gov
