Last reviewed: May 12, 2026
Last updated: May 12, 2026
Written by:
Jay Hastings,
CEO of PlexusDx
Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations. He has more than 20 years of experience across healthcare innovation, genomics, laboratory operations, healthcare investing, and strategic finance.
Medically reviewed by:
Jayden Lee, PharmD, EMBA
Jayden Lee, PharmD, EMBA, is the PlexusDx Medical Science Liaison with a PharmD and MBA specializing in pharmacogenomics and clinical product development, with a proven ability to bridge the gap between genomic research and practical patient outcomes. Dr. Lee has more than 10 years of professional experience in clinical pharmacy, academia, and research.
This article is part of the PlexusDx Education Hub — science-backed guidance on GLP-1 medications, metabolic health, and precision weight management.
To grasp how semaglutide can facilitate weight loss, it’s essential to understand its mechanism of action. Semaglutide is a glucagon-like peptide-1 (GLP-1) receptor agonist. This means it mimics the function of a naturally occurring hormone in your body that is involved in appetite regulation and gl
What is the Average Weight Loss Per Week on Semaglutide?
When considering semaglutide as a weight loss solution, one of the most common questions is, “What is the average weight loss per week on semaglutide?” The answer can vary based on several factors, including dosage, individual metabolism, and adherence to lifestyle changes.
Research has shown that semaglutide can lead to substantial weight loss over time. In clinical trials, participants experienced significant reductions in body weight:
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First Month: In the initial weeks of treatment, most patients begin to notice weight loss. On average, individuals can expect to lose about 3-4% of their body weight by the end of the first month.
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12 Weeks: By the 12-week mark, studies indicate an average weight loss of around 6-9% of baseline body weight. This translates to approximately 1 to 2 pounds per week for many individuals.
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6 Months: Over a six-month period, participants have reported an average weight loss of 10-15%. This can be roughly 1 to 2.5 pounds per week, depending on individual factors and adherence to treatment.
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Long-Term Results: With continued use, individuals can sustain weight loss. By the end of one year, many have achieved a weight loss of 15-20% of their initial body weight, with some experiencing even greater reductions.
It’s important to note that weight loss is most effective when semaglutide is combined with a healthy diet and regular exercise. This holistic approach not only enhances the medication’s effects but also contributes to long-term success.
Factors Influencing Weight Loss on Semaglutide
Maximizing Weight Loss Results on Semaglutide
To achieve the best possible outcomes with semaglutide, we recommend incorporating the following strategies:
A well-rounded diet is integral to supporting weight loss efforts. Focus on:
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Whole Foods: Prioritize fruits, vegetables, whole grains, lean proteins, and healthy fats. These nutrient-dense options can help you feel full and satisfied.
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Portion Control: Pay attention to portion sizes to avoid overeating. This practice can be particularly effective when combined with semaglutide, which helps to naturally reduce appetite.
Engaging in regular exercise not only aids weight loss but also improves overall health. Aim for at least 150 minutes of moderate-intensity exercise each week. Activities could include:
- Walking or jogging
- Cycling
- Swimming
- Strength training
FAQ
How long does it take to see results with semaglutide?
Can I take semaglutide if I’m not diabetic?
Are there any side effects associated with semaglutide?
How do I maintain weight loss after stopping semaglutide?
By taking informed steps towards your weight loss goals with semaglutide and the support of PlexusDx, you are embarking on a transformative journey toward a healthier you.
How Your Genetics Influence GLP-1 Response
Not everyone responds to GLP-1 medications the same way. Genetic variants — including GIPR rs1800437, GLP1R rs6923761, FTO rs9939609, and MC4R rs17782313 — influence how your body processes these medications, how much weight you lose, and how you tolerate side effects. PlexusDx maps 14 pathways, 49 peptides, and 150+ genetic insights to match each patient to the right medication, dose, and lifestyle protocol for their biology. The PlexusDx Precision Peptide Genetic Test ($99 add-on after your first month, or $298 standalone) gives your provider precise insight into your peptide genetic predispositions before the first prescription is written.
Access Personalized GLP-1 Care Through PlexusDx
PlexusDx offers six prescription GLP-1 protocols to all 50 states — no membership, no insurance required, async intake or live consult. The Tirzepatide Injection starts at $249/mo. Medications are dispensed from licensed 503A compounding pharmacies following strict quality and safety standards. Add a Precision Peptide Genetic Test for $99 to personalize your protocol from day one.
Frequently Asked Questions
How long does it take to see results with semaglutide?
Most individuals can start to see weight loss results within the first month of treatment, with more significant changes typically visible by 12 weeks.
Can I take semaglutide if I’m not diabetic?
Yes, semaglutide is approved for weight management in individuals without diabetes, provided they meet specific criteria.
Are there any side effects associated with semaglutide?
Common side effects may include nausea, diarrhea, and constipation. These effects often subside over time as your body adjusts to the medication.
How do I maintain weight loss after stopping semaglutide?
To maintain weight loss, it’s crucial to continue with healthy lifestyle changes, including a balanced diet and regular physical activity. Regular follow-ups with healthcare providers can also help.
How can I get started with semaglutide?
To find out if semaglutide is suitable for you, consider taking PlexusDx's free assessment quiz. This will help us tailor a weight loss plan that meets your specific needs.
Related Reading
Pricing and availability current as of May 2026. Compounded GLP-1 medications are not FDA-approved drug products; they are prepared by licensed compounding pharmacies under federal compounding regulations. Compounded semaglutide and tirzepatide are not the same as Wegovy, Ozempic, Zepbound, or Mounjaro. This article is for informational purposes only and does not constitute medical advice. Consult a licensed healthcare provider before starting, stopping, or changing any medication.
Return to the PlexusDx Education Hub for more evidence-based resources on GLP-1 therapy, metabolic health, and personalized weight management.
Medical and Editorial Standards
Medical review process: This article was reviewed for medical accuracy, scientific clarity, evidence alignment, and appropriate discussion of genetics, medications, supplements, biomarkers, and health-related claims.
Sources and evidence: PlexusDx educational content is developed using peer-reviewed research, clinical literature, reputable medical references, and, where applicable, public health or regulatory guidance.
Commercial transparency: PlexusDx offers genetic testing, blood biomarker testing, personalized supplement recommendations, and related precision wellness services. Product mentions are intended to help readers understand available options and should not be interpreted as medical advice.
Important disclaimer: PlexusDx educational content is for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about medications, supplements, genetic testing, lab testing, or health-related care.
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