GLP-1 Medications: What They Are, How They Work & Who They Help

What Are GLP-1 Medications?

If you've been hearing about GLP-1 medications everywhere — from your doctor's office to social media — you're not imagining the buzz. These prescription medications have fundamentally changed how clinicians approach weight loss, offering a tool that works with your body's natural hunger and satiety signals rather than against them.

GLP-1 medications are a class of drugs that mimic a hormone your intestines naturally produce after eating. That hormone, glucagon-like peptide-1 (GLP-1), tells your brain you're full, slows how quickly food leaves your stomach, and helps regulate blood sugar. The medications amplify these signals, making it easier to eat less without the constant mental battle that derails so many weight loss efforts.

The two most widely known GLP-1 medications for weight loss are semaglutide and tirzepatide. Both are FDA-approved, backed by large-scale clinical trials, and prescribed by licensed clinicians. They're not supplements, stimulants, or appetite suppressants in the traditional sense — they're evidence-based tools that change how your body responds to food.

How GLP-1 Medications Work

Understanding the mechanism matters, because it explains why these medications feel different from past weight loss attempts.

When you eat, your gut releases GLP-1 naturally. It travels to your brain and signals satiety. It also slows gastric emptying — the rate at which your stomach sends food to your intestines — which keeps you fuller longer. In people with obesity, this system often doesn't work as efficiently. You may feel hungry soon after eating, or never feel truly satisfied.

GLP-1 medications restore that feedback loop. Semaglutide and tirzepatide bind to GLP-1 receptors (and in tirzepatide's case, GIP receptors as well) to:

This isn't about willpower. It's about biochemistry. When the signals work properly, eating less doesn't feel like deprivation — it feels natural.

FDA-Approved GLP-1 Medications for Weight Loss

Semaglutide

Semaglutide is approved by the FDA under the brand name Wegovy for chronic weight management in adults with a BMI of 30 or higher, or 27 or higher with at least one weight-related condition (like hypertension or type 2 diabetes). It's also available as Ozempic, which is FDA-approved for type 2 diabetes but prescribed off-label for weight loss.

In the STEP clinical trial program, participants taking semaglutide lost an average of 15-17% of their body weight over 68 weeks when combined with lifestyle changes. That's a level of sustained weight loss rarely seen with diet and exercise alone.

Body Good Studio offers compounded semaglutide as part of its medical weight loss programs, prescribed by licensed clinicians and shipped discreetly to your door.

Tirzepatide

Tirzepatide, approved as Zepbound for weight management, is a dual GIP/GLP-1 receptor agonist. That means it activates two hormones instead of one, which may explain why trial participants saw even greater weight loss on average.

In the SURMOUNT-1 trial, adults taking the highest dose of tirzepatide lost an average of 20.9% of their body weight over 72 weeks. For someone starting at 240 pounds, that's roughly 50 pounds.

If you're curious but not ready to commit long-term, Body Good Studio's tirzepatide one-time trial lets you try the medication for a single month to see how your body responds.

Other GLP-1 Medications

Liraglutide (Saxenda) is an older, daily-injection GLP-1 medication approved for weight loss. It's effective but requires daily dosing, whereas semaglutide and tirzepatide are once-weekly.

Oral semaglutide (Rybelsus) is FDA-approved for type 2 diabetes and available in pill form. While not officially approved for weight loss, some clinicians prescribe it off-label for patients who prefer to avoid injections. Body Good Studio offers an oral GLP-1 option with no commitment for adults who want to explore medical weight loss without needles.

Who Should Consider GLP-1 Medications

GLP-1 medications aren't for everyone, and that's okay. They're intended for adults who meet specific clinical criteria:

You're a stronger candidate if:

You may not be a candidate if:

A licensed clinician will review your full medical history before prescribing. If you're unsure whether you qualify, take our free 60-second quiz to get personalized guidance.

What to Expect When Starting GLP-1 Medications

Dosing and Titration

Most GLP-1 medications start at a low dose and increase gradually over several weeks or months. This titration schedule helps your body adjust and reduces the risk of side effects.

For semaglutide, a typical schedule starts at 0.25 mg weekly, then increases every four weeks until you reach a maintenance dose (often 1.7 mg or 2.4 mg). Tirzepatide follows a similar pattern, starting at 2.5 mg and increasing to 5 mg, 10 mg, or 15 mg depending on your response and tolerance.

Your clinician will personalize your plan based on how you're feeling, how much weight you're losing, and any side effects you experience.

Common Side Effects

The most common side effects are gastrointestinal: nausea, constipation, diarrhea, and occasional vomiting. These tend to be worst in the first few weeks after starting or increasing your dose, then improve as your body adapts.

Practical ways to manage side effects:

If nausea is interfering with your daily life, talk to your clinician. Body Good Studio offers prescription ondansetron to help patients stay on protocol without unnecessary discomfort.

Timeline for Results

Most people notice reduced appetite within the first week or two. Weight loss typically becomes visible within the first month, though the rate varies.

In clinical trials, the most significant weight loss occurred over 60-72 weeks. This isn't a 30-day transformation — it's a sustained, gradual process that allows your body to adjust and your habits to evolve alongside the medication.

GLP-1 Medications and Insurance

Insurance coverage for GLP-1 medications is inconsistent. Some plans cover them fully with prior authorization. Others exclude weight loss medications entirely, even when you meet clinical criteria.

If you have insurance, it's worth checking your coverage before assuming you'll pay out of pocket. Body Good Studio's GLP-1 insurance eligibility review includes clinician support to help you understand your benefits, navigate prior authorization, and access the medication through your plan when possible.

If your insurance doesn't cover it, compounded versions of semaglutide and tirzepatide are often more affordable than branded options, with transparent pricing and no surprise bills.

You can also use our free insurance probability checker to get a quick sense of whether your plan is likely to cover GLP-1 medications.

GLP-1 Medications vs. Other Weight Loss Options

GLP-1s aren't the only medical weight loss option, and they're not right for everyone.

Bupropion/Naltrexone (Contrave)

This combination medication works on different pathways — bupropion is an antidepressant that reduces cravings, and naltrexone is an opioid antagonist that affects reward pathways in the brain. It's taken daily as a pill and may be a better fit for people who can't use GLP-1 medications due to contraindications. Body Good Studio offers bupropion/naltrexone as a non-GLP-1 alternative.

Phentermine

Phentermine is a stimulant that suppresses appetite. It's effective short-term but not intended for long-term use due to potential cardiovascular side effects and tolerance. GLP-1 medications are generally preferred for sustained weight management.

Bariatric Surgery

Procedures like gastric sleeve or bypass remain the most effective weight loss interventions for people with severe obesity. GLP-1 medications are non-surgical options that may help people avoid or delay surgery, or maintain weight loss after surgery.

Your clinician will help you weigh these options based on your health history, goals, and preferences.

The Role of Telehealth in GLP-1 Access

Telehealth has made medical weight loss more accessible. Instead of waiting weeks for an in-person appointment, you can consult with a licensed clinician from home, often within 24 hours.

Body Good Studio's platform is built for adults pursuing evidence-based weight loss without the stigma, gatekeeping, or logistical barriers that often come with traditional care. You'll work with a licensed clinician who reviews your medical history, prescribes medication if appropriate, and ships it discreetly to your door. Pricing is transparent, insurance is welcome, and the process is bilingual (English and Spanish).

To explore Body Good Studio's medical weight loss programs or read more about GLP-1 science and practical tips, visit our blog.

Frequently Asked Questions

How long do I need to take GLP-1 medications?

Most people use GLP-1 medications long-term. Weight loss is sustained as long as you continue treatment. If you stop, appetite and weight typically return toward baseline over several months. Think of it like blood pressure medication — it works while you take it.

Can I take GLP-1 medications if I don't have diabetes?

Yes. Semaglutide and tirzepatide are FDA-approved for weight management in adults without diabetes, as long as you meet BMI criteria. You don't need to have type 2 diabetes to qualify.

Will I regain the weight if I stop?

Many people regain some weight after stopping GLP-1 medications, though the amount varies. The goal is to use the medication as a tool to build sustainable habits — better portion control, consistent movement, improved sleep — so that when and if you stop, you're in a stronger position to maintain your results.

Are GLP-1 medications safe for long-term use?

Clinical trials have followed participants for up to two years with no major safety concerns. Post-marketing surveillance continues to monitor long-term outcomes. Serious side effects are rare but include pancreatitis, gallbladder disease, and thyroid tumors (seen in rodent studies but not confirmed in humans).

Can I use GLP-1 medications if I'm trying to lose the last 10 pounds?

GLP-1 medications are approved for people with a BMI of 27 or higher with a weight-related condition, or 30 or higher without one. They're not intended for cosmetic weight loss in people at a healthy weight. A clinician will assess your eligibility during your consultation.

Ready to Start Your Weight Loss Journey?

Body Good Studio's clinician-prescribed programs make medical weight loss accessible, affordable, and personalized. Whether you're curious about semaglutide, tirzepatide, or non-GLP-1 options, you'll work with a licensed provider who listens, answers your questions, and builds a plan that fits your life. Take our free 60-second quiz to see if you qualify — most members get a treatment plan in under 24 hours.