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Serum or plasma mass concentration of vitamin E (alpha-tocopherol)

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

This test measures the amount of vitamin E, a fat-soluble antioxidant, in your blood. Vitamin E helps protect cells from damage caused by free radicals.

Quick summary

["Vitamin E supports cell health and immune function; low levels may indicate nutritional deficiencies or absorption issues."]

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

Key facts at a glance

LOINC
30110-1
Short code
EME Vitf-mCnc
Synonyms
EME Vitf-mCnc
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 Is This Test Done?

Your healthcare provider may order this test if you have symptoms like muscle weakness, nerve problems, or skin issues that could be linked to low vitamin E levels. It may also be checked in people with certain digestive disorders (like Crohn’s disease) or those who take certain medications that affect vitamin absorption.

What to Expect Before the Test

No special preparation is usually needed. You may be asked to fast for 8–12 hours before the test if your blood is drawn in the morning. Bring any medications you’re taking to your appointment.

What Happens During the Test?

A healthcare professional will draw blood from a vein in your arm. You may feel a slight pinch, but it usually doesn’t cause significant discomfort. The blood sample is then sent to a lab for analysis.

What Do Results Mean?

Results are compared to a reference range for your age and health status. Low levels might suggest vitamin E deficiency, while high levels could indicate certain conditions or medications. Your doctor will discuss the results in the context of your overall health.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Vitamin E Level

Frequently asked questions

What causes vitamin E levels to be low?
Low vitamin E levels can result from poor diet (low intake of nuts, seeds, or fortified foods), digestive disorders that reduce absorption, certain medications (like cholesterol-lowering drugs), or genetic conditions affecting fat metabolism.
How can I increase my vitamin E intake?
Eat foods rich in vitamin E, such as sunflower seeds, almonds, spinach, avocados, and olive oil. If your doctor recommends supplements, they may suggest alpha-tocopherol (the most biologically active form) or mixed tocopherols.
Is vitamin E testing covered by insurance?
Coverage depends on your insurance plan and reason for testing. If ordered by a doctor for a specific medical concern, it may be covered under diagnostic testing. Always check with your insurance provider for details.
  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