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Vitamin E (Alpha-Tocopherol) Concentration

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of vitamin E, a fat-soluble antioxidant found in your blood. Low levels may indicate poor absorption or underlying health concerns.

Quick summary

["Vitamin E helps protect cells from damage and supports immune function—low levels may need further evaluation."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
10231-9
Short code
RV EF
Synonyms
RV EF
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why Might This Test Be Ordered?

Your doctor may recommend this test if you have symptoms like muscle weakness, nerve problems, or signs of vitamin deficiency. It’s also sometimes checked in people with conditions affecting fat absorption (e.g., celiac disease, pancreatitis) or those taking certain medications that may interfere with vitamin E levels.

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to fast for 8–12 hours before drawing blood. Wear a loose shirt for easy access to your arm.

What Happens During the Test?

A healthcare provider will insert a small needle into your arm to draw blood. The process takes a few minutes, and you may feel a brief pinch. The blood is then sent to a lab for analysis.

What Are Common Causes of Low or High Levels?

Low vitamin E levels can result from malabsorption (e.g., due to gastrointestinal disorders), certain medications, or genetic conditions. High levels are less common but may occur with long-term vitamin supplementation or rare metabolic disorders.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Vitamin E is vital for cell protection and nerve function. Low levels may signal underlying issues like chronic pancreatitis, cystic fibrosis, or malabsorption syndromes. Early detection can help guide treatment, such as dietary changes or supplements, to restore balance.

Short name

Vitamin E Level

Frequently asked questions

What does a low vitamin E level mean?
A low vitamin E level may suggest poor absorption of nutrients, certain digestive disorders, or long-term medication use that affects vitamin storage. Your doctor may recommend further testing or adjustments to your diet or supplements.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on your lab’s processing time. Your doctor will contact you once they’re ready.
Can I take vitamin E supplements before the test?
Yes, but avoid taking high-dose vitamin E supplements for at least 24 hours before testing, as this could affect the results. Stick to your usual diet and medications unless instructed otherwise.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy