Understanding Albumin: Normal vs Optimal Ranges

?What is Albumin?

Albumin is the most abundant protein in the blood, produced exclusively by the liver. It serves multiple vital functions: maintaining oncotic pressure (preventing fluid leakage from blood vessels), transporting hormones, drugs, and fatty acids, and acting as a buffer to maintain blood pH. Albumin levels reflect both liver synthetic function and nutritional status.

!Why It Matters

Low albumin is a sensitive marker of poor liver function, malnutrition, or chronic inflammatory states. It is a powerful predictor of clinical outcomes — studies consistently show that albumin is inversely associated with mortality. Optimising albumin through nutrition is an important longevity strategy.

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

• Low albumin: oedema (fluid retention in legs, abdomen)
• Fatigue, muscle weakness, poor wound healing
• High albumin: usually dehydration

How to Improve Your Levels

• 1Ensure adequate protein intake (1.2–1.6 g/kg/day for most adults)
• 2Address underlying liver disease
• 3Treat infections and chronic inflammatory conditions
• 4For malnutrition: supervised nutritional rehabilitation

When to Test

Part of standard liver function tests. Also important for monitoring nutritional status in chronic illness.

Related Biomarkers