IGF-1
IGF-1 is a clinical biomarker on the Hormones panel, reported in ng/mL. Standard reference range: 53–331 ng/mL. Functional (optimal) range used by integrative practitioners: 92–300 ng/mL.
What is IGF-1?
Insulin-like Growth Factor 1 (IGF-1) is a hepatic peptide produced in response to growth hormone (GH) stimulation; it mediates most anabolic and growth-promoting GH actions and serves as the most stable serum reflection of GH axis status. IGF-1 levels decline with age, are sensitive to nutritional status (especially zinc and protein), and rise with insulin resistance, GH excess (acromegaly), and certain malignancies. The displayed standard range (53–331 ng/mL) reflects the ~30–39 y adult reference; see the age-stratified table under Clinical Context.
Reference ranges
| Range type | Value (ng/mL) | Source |
|---|---|---|
| Standard (lab) | 53–331 | Typical Quest / LabCorp adult reference |
| Functional (optimal) | 92–300 | Integrative / functional medicine consensus |
How SomaVue interprets IGF-1
SomaVue maps every result for IGF-1 against four clinical lenses — nutrient cofactors, toxin exposure, infection drivers, and circadian/hormonal context — and connects each interpretation to specific peer-reviewed citations. Pre-mapped clinical reasoning and cross-marker pattern detection are available inside the practitioner workspace.
See the full interpretation
Upload a patient PDF from Quest, LabCorp, Access Medical Labs, LifeLabs, Vibrant, Rupa, or any other lab — or enter values manually. See the four-lens analysis, cross-marker patterns, and cited evidence for IGF-1 and 223 other markers.
Try it freeEducational reference only. Reference ranges vary by laboratory, assay method, age, sex, and clinical context. Functional ranges represent integrative-medicine consensus and are not regulatory thresholds. SomaVue does not diagnose, treat, mitigate, or prevent disease. Always consult a licensed healthcare provider.