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. His work has included scaling healthcare startups, leading CLIA lab integrations, and helping expand consumer access to precision health tools.

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.

The IGF1 rs35767 Variant, the Tesamorelin Pathway, and Weight Management: What Your Genotype May Mean

Tesamorelin is a synthetic peptide that encourages the pituitary gland to release more growth hormone, which helps regulate how the body uses fats, carbohydrates, and proteins for energy. These signals can influence body composition, including the balance between lean tissue and stored fat, and they work through connected organs like the hypothalamus, liver, muscle, and fat tissue. The IGF1 gene is part of this pathway because it helps carry out many of the effects of growth hormone in the body. Natural differences in IGF1 can affect IGF-1 levels and how strongly these metabolic signals are felt, which may lead to differences in energy use, tissue repair, and overall metabolic efficiency.

Genetic variation in the IGF1 gene may influence how efficiently the biological processes connected to Tesamorelin and Weight Management function. The rs35767 variant is analyzed in the PlexusDx Precision Peptide Genetic Test as part of the Weight Management pathway. Depending on your genotype, this variant may have a modest to meaningful influence on adipokine signaling, insulin sensitivity, and metabolic regulation. Understanding your result gives you a personalized starting point for targeted lifestyle, dietary, and supplement strategies grounded in your unique biology.

Practical Foundations for Everyone

Regardless of your IGF1 rs35767 genotype, the following lifestyle inputs consistently support body composition, metabolic balance, and fat metabolism efficiency. Carriers of the effect allele often notice a stronger return on these habits when applied consistently — which makes regularity more valuable than intensity.

  • Consistent nutrition: A whole-food dietary pattern rich in vegetables, quality protein, healthy fats, and fiber provides the micronutrient foundation that supports weight management-related pathways at a cellular level.
  • Regular movement: Physical activity — particularly a combination of aerobic exercise and resistance training — supports the metabolic signaling and growth factor pathways that interact with weight management and biological resilience.
  • Quality sleep: Restorative sleep is essential for cellular repair, hormone regulation, and the metabolic processes that underpin weight management. Consistent sleep timing amplifies the benefits of other lifestyle habits.
  • Stress management: Chronic stress elevates cortisol and inflammatory markers that can blunt the efficiency of pathways related to weight management. A daily stress-reduction practice — even five to ten minutes of slow breathing or mindfulness — helps maintain biological balance.

Diet Recommendations for IGF1 rs35767 and the Tesamorelin Pathway

A targeted nutritional approach for the IGF1 rs35767 variant focuses on supplying the micronutrients and macronutrient balance that support adipokine signaling, insulin sensitivity, and metabolic regulation and reduce the metabolic burden on pathways connected to Tesamorelin. Priority nutrients vary by pathway but consistently center on anti-inflammatory whole foods, adequate protein for cellular and tissue support, and micronutrient density from colorful produce and quality fats.

The GLP-1 Support is designed to support this pathway. A nutrient-dense plan supporting GLP-1 medications with protein, healthy fats, and fiber to enhance results and minimize side effects....

Build meals around quality protein sources (fish, poultry, legumes, eggs), fiber-rich carbohydrates (vegetables, whole grains, legumes), and healthy fats (olive oil, avocado, nuts, seeds). Minimize ultra-processed foods, excessive added sugars, and alcohol — all of which increase oxidative and inflammatory burden on pathways that interact with weight management and Tesamorelin-related signaling.

Supplement Considerations for IGF1 rs35767 Support

Supplements cannot modify your IGF1 rs35767 genotype, but targeted supplementation can address nutritional gaps and support the biological pathways connected to Tesamorelin and weight management. A foundations-first approach — prioritizing the basics before adding specialty products — produces the most consistent outcomes. Always discuss supplementation with your healthcare provider before starting, especially if you take medications or manage ongoing health conditions.

The PlexusDx Weight Loss Support is a personalized daily pack designed to support this pathway. PlexusDx Weight Loss Support Personalized Daily Pack combines berberine, green tea extract, and Forslean to help support healthy metabolism and promote effective weight management. Convenient pre-portioned packs make it easy to stay consistent while supporting energy, fat metabol...

Key nutrients commonly relevant to the Weight Management pathway include those that support adipokine signaling, insulin sensitivity, and metabolic regulation. Assess dietary gaps first; targeted supplementation is most valuable when it addresses a specific nutritional shortfall confirmed by food tracking or lab results rather than used as a substitute for consistent lifestyle habits.

Lifestyle Recommendations for Weight Management and Tesamorelin Pathway Support

Consistent lifestyle habits are the most durable and evidence-supported way to reinforce the biological pathways associated with Tesamorelin and weight management. For carriers of the IGF1 rs35767 effect allele, these habits tend to produce a more noticeable return because they directly influence the signaling environments where the variant has its greatest impact.

A practical weekly target is 150 minutes or more of moderate aerobic activity combined with two to three resistance training sessions. Sleep consistency — a fixed wake time, morning outdoor light, and a 60 to 90 minute wind-down before bed — supports cellular recovery and the hormonal balance that underpins weight management. Stress management practices such as slow breathing, mindfulness, or low-stimulation outdoor time help maintain the biological stability that Tesamorelin-related pathways depend on for efficient function. Avoiding chronic sleep debt, late-day caffeine, and excessive alcohol further removes common suppressors of weight management-related signaling.

Genetic Interpretations for rs35767 (IGF1)

2 Effect Alleles: GG (+/+)

You have the GG genotype for rs35767 which means you carry two copies of the effect allele. This variation is associated with lower circulating IGF-1 levels and reduced insulin sensitivity in several studies, suggesting that one part of the growth hormone–IGF-1 metabolic pathway may function below the typical range. In the context of the Tesamorelin pathway, this is especially relevant because Tesamorelin is a growth hormone–releasing hormone analog that increases endogenous growth hormone and subsequently raises IGF-1 levels, making the downstream IGF1 pathway a biologically important part of how Tesamorelin-related signaling is expressed. Human studies have reported that carriers of the GG genotype at rs35767 tend to have lower circulating IGF-1 concentrations and lower insulin sensitivity than A-allele carriers, supporting the idea that this genotype may reflect a less favorable baseline metabolic environment in which growth hormone signaling is translated downstream. The FDA labeling for tesamorelin also notes that tesamorelin stimulates growth hormone secretion and subsequently increases IGF-1 levels, reinforcing why this SNP is relevant to the pathway. For individuals with the GG genotype, helpful strategies may include prioritizing resistance training, adequate protein intake, high-quality sleep, glucose-stable meals built around fiber and minimally processed carbohydrates, and maintaining healthy body composition, since these habits can support insulin sensitivity and anabolic-metabolic balance. Overall, this genotype does not directly predict Tesamorelin response, but it may indicate that the downstream IGF-1 environment is somewhat less favorable and more dependent on strong lifestyle support.

1 Effect Allele: GA (+/-)

You have the GA genotype for rs35767, which means you carry one copy of the effect allele and one copy of the non-effect allele. This intermediate genotype may be associated with a moderate difference in IGF-1 signaling and metabolic regulation, often representing a middle-ground pattern between the two homozygous genotypes. In connection with the Tesamorelin pathway, this suggests that growth hormone–stimulated IGF-1 production is likely to remain broadly functional, but may show some variation in efficiency depending on body composition, insulin sensitivity, sleep, exercise habits, and overall metabolic health. Because IGF1 is a major downstream mediator of growth hormone action, even modest genetic differences in baseline IGF-1 levels may influence how efficiently tissues respond to endocrine signals involved in nutrient partitioning, lean-mass support, and fat metabolism. Published data support that the A allele is generally associated with higher IGF-1 levels than the GG pattern, while meta-analytic work also suggests rs35767 is linked to type 2 diabetes susceptibility, indicating that this variant is best interpreted as a moderate metabolic modifier rather than a stand-alone determinant. For this genotype, the most useful approach is usually to optimize the surrounding anabolic and metabolic environment through regular exercise, adequate protein, good sleep, balanced calorie intake, and habits that support insulin sensitivity and recovery. Overall, this genotype is best viewed as an intermediate-response marker within the broader growth hormone–IGF-1 pathway relevant to Tesamorelin.

0 Effect Alleles: AA (-/-)

You have the AA genotype for rs35767 which means you carry two copies of the non-effect allele. This genotype is generally associated with a more typical or relatively more favorable IGF-1 profile, including higher circulating IGF-1 levels and better insulin sensitivity compared with carriers of the GG genotype in several studies. In the context of the Tesamorelin pathway, this suggests that the downstream IGF1 portion of growth hormone signaling is more likely to function within the expected range. Since tesamorelin increases endogenous growth hormone and subsequently raises IGF-1, this genotype may indicate that the downstream mediator targeted by the pathway is less likely to be a major limiting factor in the broader hormonal network. Even so, body composition and metabolic health still depend heavily on calorie balance, exercise, sleep, inflammation, and overall insulin sensitivity, so this genotype should not be interpreted as guaranteeing an optimal response. The main recommendations for this genotype are therefore foundational: maintain a nutrient-dense eating pattern, consume adequate protein, exercise regularly with both resistance and aerobic training, and support sleep and recovery. Overall, this genotype is generally consistent with a more typical IGF1-mediated contribution to the broader metabolic pathways relevant to Tesamorelin.

Inconclusive — No Result

Your genetic data for rs35767, a IGF1 gene variant, was not successfully called by the laboratory. This means the test did not detect a reliable result for this position, which can occur for technical reasons such as low signal intensity, DNA quality issues, or limitations of the genotyping array. Without a result, we cannot determine whether you carry the typical or effect variant for this gene. If this information is important for your health decisions, you may wish to consider retesting or confirming this variant through a targeted genetic test or sequencing method.

When to Talk to Your Healthcare Provider

If you have concerns related to weight management, the Tesamorelin pathway, or how your IGF1 rs35767 results fit into your broader health picture, consult your healthcare provider. They can interpret your genetic results alongside your symptoms, health history, and lab values to guide appropriate testing, dietary adjustments, and supplementation where relevant.

PlexusDx provides genetic insights to help you understand how your genes may influence nutrient needs and biological pathways. This information is provided for educational and wellness purposes only and does not diagnose, treat, or recommend any specific medication, peptide, or therapy, some of which may be prescription-only, investigational, or intended for research use only. Always consult with a qualified healthcare provider before making changes to your supplement regimen, diet, or health plan based on genetic information.

Frequently Asked Questions About IGF1 rs35767 and Tesamorelin

What does the IGF1 rs35767 variant mean for my weight management?

The rs35767 variant in the IGF1 gene may influence how efficiently biological processes connected to Tesamorelin and Weight Management function in your body. Depending on your genotype, this can have a modest to meaningful effect on adipokine signaling, insulin sensitivity, and metabolic regulation. Understanding your result gives you a personalized starting point for a targeted lifestyle and nutrition strategy grounded in your unique genetic biology.

How does the Tesamorelin pathway relate to IGF1 and weight management?

Tesamorelin is a peptide being studied for its potential role in supporting body composition, metabolic balance, and fat metabolism efficiency. Researchers are interested in how Tesamorelin-associated pathways may interact with genes like IGF1, which contribute to the signaling environments that influence weight management function. The PlexusDx Precision Peptide Genetic Test analyzes 14 pathways, 49 peptides, and 150 genetic insights — including IGF1 rs35767 — to provide a comprehensive view of how your genetics may influence these interconnected systems.

Can lifestyle changes support IGF1 function regardless of my genotype?

Yes. Consistent lifestyle habits — regular exercise, quality sleep, anti-inflammatory nutrition, and stress management — support weight management-related biological pathways across all genotypes. For carriers of the effect allele at rs35767, these habits tend to produce a stronger measurable return because they directly reinforce the signaling environments where this variant has its greatest influence. Consistency and habit stacking — combining exercise, sleep, and nutrition improvements together — tends to produce better outcomes than any single change in isolation.

What tests can help me learn more about my weight management and the Tesamorelin pathway?

The PlexusDx Precision Peptide Genetic Test analyzes 14 pathways, 49 peptides, and 150 genetic insights — including IGF1 rs35767 — to deliver a comprehensive picture of how your genetics may influence peptide-related health pathways. The Peptide Pathways Report translates your results into personalized, actionable guidance. Your healthcare provider can also recommend targeted blood tests based on your specific pathway results and health history to complement your genetic insights with current biomarker data.

If this genetic variant is present in your PlexusDx results, the following tests and reports are commonly used to explore it further:

🧬 Genetic Tests:

📄 Genetic Report:

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. References are included at the end of the article when scientific, medical, or health-related claims are discussed.

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.