GLP-1 for Beginners: Everything You Need to Know Before Starting

GLP-1 medications are a class of injectable drugs originally developed to treat type 2 diabetes that have proven remarkably effective for weight loss. "GLP-1" stands for glucagon-like peptide-1, a hormone your body naturally produces in the gut after eating. GLP-1 medications work by mimicking this natural hormone. They bind to GLP-1 receptors in your brain, stomach, and pancreas, producing three key effects: 1. Appetite suppression: GLP-1 medications signal to the appetite centers in your brain that you are full. Most patients describe it as "food noise" — the constant mental preoccupation with eating — going quiet for the first time. 2. Slowed digestion: Food moves more slowly through your stomach, which prolongs feelings of fullness and reduces the urge to snack between meals. 3. Improved insulin function: GLP-1 medications help your pancreas produce insulin more efficiently and reduce glucagon (a hormone that raises blood sugar). This is why they were originally developed for diabetes. The result? You eat less without feeling deprived, and your body processes the food you do eat more efficiently. Clinical trials show average weight loss of 15-22% of body weight over 12-18 months. [1] The two most popular GLP-1 medications for weight loss are semaglutide (brand names Wegovy, Ozempic) and tirzepatide (brand names Zepbound, Mounjaro). Both are administered as once-weekly injections. Other GLP-1 medications you may hear about: While semaglutide and tirzepatide dominate the weight loss conversation, several other GLP-1 medications exist. Liraglutide (Saxenda, Victoza) is a once-daily injection approved for weight loss since 2014 — it works through the same GLP-1 mechanism but produces less weight loss (approximately 5-8% vs. 15-22% for the newer medications). Dulaglutide (Trulicity) is a once-weekly GLP-1 injection approved only for diabetes. Retatrutide and survodutide are next-generation medications in late-stage clinical trials that may offer even greater weight loss than tirzepatide, with potential FDA approval in 2027-2028. For most patients starting GLP-1 therapy today, semaglutide and tirzepatide remain the most accessible and well-studied options.

Most adults who are overweight or obese are candidates for GLP-1 therapy. The specific criteria vary by medication and provider, but generally include: FDA-approved criteria for Wegovy (semaglutide): - BMI ≥30 (obesity), OR - BMI ≥27 (overweight) with at least one weight-related condition (high blood pressure, type 2 diabetes, high cholesterol, sleep apnea) FDA-approved criteria for Zepbound (tirzepatide): - Same as Wegovy: BMI ≥30, or BMI ≥27 with a comorbidity In practice, telehealth providers use similar criteria: Most online providers will prescribe GLP-1 medications if you have a BMI of 27+ and no contraindications. Some providers are more flexible than others. Who should NOT take GLP-1 medications: - Personal or family history of medullary thyroid carcinoma (MTC) - Multiple Endocrine Neoplasia syndrome type 2 (MEN 2) - Current pregnancy or planning pregnancy within 3 months - History of pancreatitis (relative contraindication — discuss with provider) - Severe gastroparesis (delayed stomach emptying) - Active eating disorder GLP-1 medications are NOT: - A quick fix or crash diet - Only for people with diabetes - Dangerous when prescribed by a licensed provider - A substitute for healthy eating and exercise They are a legitimate medical treatment for a legitimate medical condition. Obesity is a chronic disease, and GLP-1 medications address the underlying hormonal and metabolic dysfunction that makes sustained weight loss difficult. [2]

You have two main paths to getting a GLP-1 prescription: telehealth platforms and in-person medical providers. Telehealth providers (most popular for GLP-1): Online platforms have made GLP-1 medications accessible to millions of Americans. The process is typically: 1. Complete an online health questionnaire 2. Have a consultation (video or async text-based) 3. A licensed provider reviews your information and prescribes if appropriate 4. Medication is shipped to your door from a licensed pharmacy Top telehealth providers for GLP-1 medications: Mochi Health — $85/month - Lowest price compound semaglutide - Membership includes provider access and community - Async consultations Hims & Hers — $199/month - Major platform with broad name recognition - Compound semaglutide and tirzepatide - Includes consultation and shipping Ro — $199/month - Largest telehealth network in the US - Will coordinate with insurance for future brand coverage - Async intake with in-app messaging Henry Meds — $249/month - Video consultation with a prescriber (15-25 minutes) - 503B-certified compounding pharmacy - Free 2-day shipping (fastest we tested) - Both semaglutide and tirzepatide available In-person providers: Your primary care doctor, endocrinologist, or obesity medicine specialist can prescribe GLP-1 medications. This is the best option if you have complex medical conditions or want ongoing in-person monitoring. However, you will need to fill the prescription at a pharmacy and may face higher costs for branded medication. [3] See our detailed telehealth provider comparison for in-depth reviews.

The first month on a GLP-1 medication is an adjustment period. Here is a realistic timeline of what to expect: Day 1 (your first injection): The injection is done with a small needle (similar to an insulin pen) into the abdomen, thigh, or upper arm. Most patients describe it as painless or mildly uncomfortable — far less painful than a blood draw. The entire injection takes about 10 seconds. Days 2-3: You may start noticing reduced appetite. Some patients describe this as "food just seems less interesting" or "I forget to eat." This is the medication beginning to work. Mild nausea is possible but not universal. Week 1: Appetite suppression is usually noticeable by now. You may find yourself eating significantly smaller portions or skipping snacks you previously craved. Some patients lose 2-4 pounds in the first week (mostly water weight). Week 2: Side effects (if any) typically peak during weeks 1-2. Nausea, mild fatigue, and changes in bowel habits are common. These are usually manageable and improve daily. Weight loss of 1-3 pounds is typical. Week 3-4: Side effects are diminishing. You are adjusting to eating smaller portions. Your provider may ask for a check-in to assess your response. Average weight loss after month 1 is 4-8 pounds. Tips for your first month: - Stay hydrated (80-100 oz water daily) - Eat small, frequent meals rather than large ones - Do not force yourself to eat if you are not hungry, but do not skip protein - Take your injection on the same day each week - Track your weight weekly (not daily) - Communicate with your provider about any concerning side effects [4]

Understanding the full cost picture before you start helps avoid surprises. Monthly medication cost: - Compound semaglutide via telehealth: $85-$399/month - Branded Wegovy with insurance: $0-$100/month - Branded Wegovy without insurance: $900-$1,600/month Additional supplies (compound patients): - Insulin syringes: $15-$30/month (or included by some providers) - Alcohol pads: $5/month - Sharps container: $10 (one-time) - Total additional: $20-$45/month Consultation and follow-ups: Most telehealth providers include consultations in the monthly price. In-person visits may cost $150-$400 per appointment without insurance. Optional extras: - Nutrition counseling: $50-$150/session - Personal training: $50-$100/session - Protein supplements: $30-$60/month - Multivitamin: $10-$20/month Realistic monthly budget: - Minimum (Mochi + supplies): ~$105/month - Typical (Henry Meds + supplies + protein): ~$325/month - Branded with insurance: ~$50-$150/month - Branded without insurance: ~$1,000-$1,700/month Money-saving tips: - Use HSA/FSA pre-tax dollars (saves 22-32%) - Start with the lowest-priced provider that meets your quality standards - Ask about referral programs (most offer $20-$50 per referral) - Check if your employer offers GLP-1 benefits or weight management stipends [5] See our complete cost guide for detailed provider-by-provider pricing.

New GLP-1 patients often make these avoidable mistakes: 1. Not eating enough protein. GLP-1 medications suppress appetite dramatically. Many patients unintentionally eat too few calories and too little protein, leading to muscle loss, fatigue, and hair thinning. Aim for at least 100g of protein daily, even when you do not feel hungry. Protein shakes can help. 2. Skipping the titration schedule. Your provider starts you on a low dose for a reason — to minimize side effects. Do not request a higher dose prematurely or take more than prescribed. Side effects are much worse at higher doses without proper titration. 3. Not drinking enough water. Dehydration worsens every common GLP-1 side effect: nausea, constipation, fatigue, and headaches. Carry a water bottle and aim for at least 80 oz daily. 4. Expecting overnight results. GLP-1 medications are not a crash diet. Meaningful weight loss takes weeks to months. You are starting at the lowest dose and gradually increasing. Most patients see the most dramatic results in months 3-6, not month 1. 5. Ignoring side effects. Most side effects are manageable, but severe vomiting, persistent abdominal pain, or signs of dehydration warrant a call to your provider. Do not "tough it out" — there are strategies and medications that can help. 6. Not combining with lifestyle changes. GLP-1 medications are most effective when combined with dietary improvements and regular exercise. Patients who adopt even modest lifestyle changes lose 30-50% more weight than those on medication alone. [6] Read our GLP-1 diet and exercise guide for detailed recommendations on maximizing your results. 7. Weighing yourself too frequently. Daily weigh-ins can be demoralizing because weight fluctuates by 1-4 pounds daily due to water retention, digestion timing, and hormonal changes. Weigh yourself once per week, on the same day and under the same conditions (e.g., every Monday morning, after using the bathroom, before eating). Track the trend over weeks, not individual data points. If the weekly trend is downward over a 4-week window, you are on track regardless of what any single day shows. 8. Not planning for the long term. Many patients focus exclusively on the weight loss phase and give little thought to what happens after reaching their goal weight. GLP-1 medications require a long-term strategy. Clinical data shows that most patients who discontinue GLP-1 therapy regain the majority of lost weight within 12 months. Before starting treatment, have an honest conversation with your provider about the duration of therapy, what maintenance looks like, and whether you are prepared for ongoing treatment. The most successful patients approach GLP-1 therapy as a long-term commitment to metabolic health, not a short-term weight loss intervention.