Understanding NAFLD Fibrosis Score: Normal vs Optimal Ranges

?What is NAFLD Fibrosis Score?

The NAFLD Fibrosis Score (FIB-4 Index) is a non-invasive calculation used to assess the risk of advanced liver fibrosis in patients with non-alcoholic fatty liver disease. It combines age, aspartate aminotransferase (AST), alanine aminotransferase (ALT), and platelet count to estimate fibrosis stage. A lower score suggests lower risk of advanced fibrosis.

!Why It Matters

The NAFLD Fibrosis Score helps identify individuals at higher risk of progressive liver disease and complications without requiring an invasive liver biopsy. Elevated scores may suggest significant liver fibrosis and could indicate a need for closer monitoring or specialist referral. Early identification can guide lifestyle modifications and treatment decisions to prevent cirrhosis.

Reference Ranges

Lab normal ranges may vary between laboratories. Optimal and longevity targets are based on research literature and should be interpreted with your physician.

Symptoms of Imbalance

• Fatigue and weakness
• Abdominal pain or discomfort
• Swelling in the abdomen or legs
• Jaundice (yellowing of skin and eyes)
• Dark urine or pale stools

How to Improve Your Levels

• 1Achieve and maintain a healthy body weight through balanced nutrition and regular exercise
• 2Reduce refined carbohydrate and added sugar intake
• 3Limit alcohol consumption or avoid alcohol entirely
• 4Increase physical activity to at least 150 minutes of moderate exercise per week
• 5Improve insulin sensitivity through dietary changes and weight management
• 6Regular monitoring and follow-up testing as recommended by your healthcare provider

When to Test

Initial screening is recommended for individuals with metabolic risk factors (obesity, type 2 diabetes, metabolic syndrome) or abnormal liver enzyme levels. Repeat testing may be performed annually or as directed by your physician to monitor disease progression.

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