VITAMIN E, ALPHA TOCOPHEROL, SERUM

Vitamin E (Alpha-Tocopherol), Serum

What it is

The Vitamin E (Alpha-Tocopherol), Serum test measures the level of alpha-tocopherol, the most biologically active form of vitamin E, in the blood. Vitamin E is a fat-soluble antioxidant that protects cells from oxidative damage, supports immune function, and plays a role in cardiovascular and neurological health.

Uses

This test is used to evaluate vitamin E status, detect deficiencies (often linked to fat malabsorption disorders), and monitor individuals at risk of low vitamin E due to genetic conditions or restrictive diets. It may also be ordered to assess potential vitamin E toxicity from excessive supplementation.

Symptoms That May Lead to the Test

Doctors may recommend this test if you show signs of vitamin E deficiency such as muscle weakness, vision problems, coordination difficulties, numbness or tingling in extremities, impaired immunity, or developmental issues in children. It may also be ordered if you are suspected of having fat malabsorption conditions like cystic fibrosis, Crohn’s disease, or celiac disease.

Abnormal Results

Low Vitamin E: May indicate malabsorption syndromes, chronic liver disease, genetic disorders affecting fat metabolism, or dietary deficiency. Severe deficiency can lead to neurological problems, anemia, and immune dysfunction.

High Vitamin E: Usually linked to over-supplementation. Excessive levels may cause bleeding problems, weakness, gastrointestinal upset, or, rarely, increased risk of stroke due to its effect on blood clotting.

Risks

The test requires a routine blood draw, which carries minimal risks such as slight pain, bruising, or dizziness at the puncture site. No major complications are expected.