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Normal IGF-1 level for a 30-year-old man
Hello Doctor,
I am a 30-year-old male.
What is the normal IGF-1 level for my age?
Please tell:
Normal reference range
What is low or high
What's most common range in this age
Common causes of low IGF-1
Thank you.
Answers (5)
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Most individuals fall between: 150–250 ng/mL
Common causes of LOW IGF-1 (guideline-listed)
A. GH-related
Adult Growth Hormone Deficiency (AGHD)
Hypothalamic–pituitary disease
Post-pituitary surgery or radiotherapy
B. Non-GH causes (important per guidelines)
Malnutrition / low protein intake
Chronic liver disease (very important – IGF-1 is liver-derived)
Poorly controlled diabetes mellitus
Hypothyroidism
Chronic kidney disease
Chronic inflammatory/systemic illness
C. Physiological / functional
Obesity (GH resistance)
Severe stress
Aging
Poor sleep
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Low IGF-1 does not always mean growth hormone deficiency. Common causes include:
• Poor sleep or chronic sleep deprivation
• Low protein or calorie intake
• Chronic stress or overtraining
• Hypothyroidism
• Poorly controlled diabetes
• Liver disease
• Obesity or metabolic syndrome
• Aging-related decline
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Dr. Ravi Kumar Nadella
General Physician
18 yrs exp
Hyderabad
100-200 as per stress
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Dr. Anuj Mothsra
General Physician
6 yrs exp
Jhunjhunu
Can help you, kindly consult and provide detailed history for proper diagnosis and further management
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Dr. Vetsa Sri Krishna Chaitanya
General Physician
7 yrs exp
Rajahmundry
Need a few more details please consult for further evaluation and treatment
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Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.