Apr 15, 2025
High Fasting Insulin Symptoms: Causes, Signs & What to Do
Symptoms of High Fasting Insulin can signal deeper health issues. This article explores the symptoms, causes, diagnosis, and management.
High fasting insulin levels can indicate insulin resistance, a precursor to type 2 diabetes. Learn the symptoms and how to lower it naturally.
What Is Fasting insulin?
Fasting insulin is a critical biomarker in the body. Abnormal levels can indicate issues with metabolic, immune, or organ function. Elevated levels should be assessed in context with symptoms and clinical background.
What Causes High Fasting insulin?
Medical conditions affecting balance or organ function
Excess dietary intake or supplement use
Medication side effects
Underlying inflammation or systemic stress
Symptoms of High Fasting insulin
Quick Summary: Symptoms vary based on the root cause but often reflect stress on the body's systems.
Unexplained fatigue
Digestive issues or appetite changes
Fluid retention or swelling
Mood or cognitive changes
How High Fasting insulin Is Diagnosed
Diagnosis typically involves blood, urine, or saliva tests depending on the biomarker. Test results are interpreted in context with clinical symptoms and health history.
Normal Levels
Measure | Normal Range |
|---|---|
Fasting Insulin | 2–20 µIU/mL |
How to Lower Fasting insulin Naturally
Quick Summary: Target underlying causes and improve lifestyle foundations.
Stay hydrated and eat a balanced diet
Manage stress and sleep quality
Exercise regularly, as appropriate
Work with a clinician to address underlying issues
When to See a Doctor
If high levels persist or symptoms are present, consult a doctor. At MitoHealth, we assess this biomarker alongside other indicators to understand systemic trends related to hydration, inflammation, and stress.
FAQs
What causes high fasting insulin? Common causes include insulin resistance, obesity, PCOS, and certain medications.
Can you reverse high insulin levels? Yes, with diet, exercise, sleep, and in some cases, medication.
Is fasting insulin better than fasting glucose? It offers an earlier signal of insulin resistance, often before glucose levels rise.