Hormones & thyroid

Metabolic health

Longevity

Insulin-like growth factor 1 (IGF-1, Somatomedin C) Blood Test

What it measures

Hormone profile test

Clinical significance

Insulin-like growth factor 1 (IGF-1), also called somatomedin C, is a hormone similar in molecular structure to insulin which plays an important role in childhood growth, and has anabolic effects in adults.

The median serum IGF-I level was 374.1 ng/ml at the age of 18. The serum IGF-I level decreased to 180.1 ng/ml at the age of 35–39, which is 48.1% of that at age 18, and further decreased to 92.7 ng/ml at ages older than 70, which is approximately 24.8% of that at age 18.

If the IGF-1 level is decreased, then it is likely that there is a growth hormone (GH) deficiency or an insensitivity to GH. If this is in a child, the GH deficiency may have already caused short stature and delayed development and may be treated with GH supplementation. Adults will have an age-related decrease in production, but lower than expected levels may reflect a GH deficiency or insensitivity.

Possible causes of elevated IGF-1 levels include: acromegaly (especially when GH is also high), high-protein diet, high glycemic-index diet, dairy products (except for cheese) consumption, delayed puberty, pregnancy, hyperthyroidism, IGF-1 assay problems, some rare tumors (i.e. carcinoids).

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Insulin-like growth factor 1 (IGF-1, Somatomedin C)

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What our users say

Real ratings and reviews from the Healsens app on the App Store and Google Play.

5.0 · 6 ratings · App Store

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4.5 · 17 ratings · Google Play

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My journey back to health with Healsens. Thank you!!

That's when I turned to a nutritionist and ordered a blood test through Healsens. … Four months later, I retested. My biological age dropped to 24—nearly a decade younger than my real age.

Anna A. · App Store

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Useful app to track analytics and 2nd opinion

It helps me track main parameters, understanding what do they mean and correlations, and make critical analysis to make preventative changes. Hope too see new fichas soon!

Alexey_E. · App Store

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Everything is great! Excellent app! It's very convenient for storing all your test results! The only thing I wish was that you could record blood pressure readings for both arms, as this is sometimes important for blood pressure monitoring.

Veronica K. · Google Play

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A useful app. It motivates me to lead a healthy lifestyle and monitor my diet. After the test results, I decided to change my diet – I cut out flour and chocolate. I lost 2 kg in about a week. We'll see how the test results look over time.

Arthur A. · Google Play

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