Understanding AFP (Alpha-fetoprotein): Normal vs Optimal Ranges

?What is AFP (Alpha-fetoprotein)?

Alpha-fetoprotein (AFP) is a protein produced primarily by the liver and fetal tissues during pregnancy. It is commonly measured as a tumor marker to assess risk for hepatocellular carcinoma (liver cancer) and certain germ cell tumors, as well as during prenatal screening. Elevated AFP levels can also be associated with liver disease and regeneration.

!Why It Matters

AFP serves as an important screening and monitoring tool for individuals at risk of liver cancer, particularly those with chronic hepatitis B or C, or cirrhosis. Elevated levels may suggest hepatocellular carcinoma, certain testicular or ovarian cancers, or benign liver conditions; however, AFP alone is not diagnostic and should be interpreted alongside imaging and clinical evaluation.

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

• Abdominal pain or swelling
• Unexplained weight loss
• Jaundice or yellowing of skin and eyes
• Fatigue and weakness
• Nausea or loss of appetite

How to Improve Your Levels

• 1Manage underlying liver disease through antiviral therapy if hepatitis is present
• 2Reduce alcohol consumption to protect liver function
• 3Maintain a healthy weight and balanced diet rich in vegetables and whole grains
• 4Regular monitoring and screening if at high risk for liver cancer
• 5Avoid hepatotoxic substances and unnecessary medications
• 6Engage in regular physical activity to support overall metabolic health

When to Test

AFP should be tested in individuals with chronic hepatitis B or C, cirrhosis, family history of liver cancer, or those over 40 in endemic regions. It may also be part of prenatal screening or investigated if symptoms suggest liver disease or certain cancers.

Related Biomarkers