Vitamin B7

This test will measure the level of Vitamin B7 in the blood. Vitamin B7 (also known as Biotin) is a water soluble vitamin that is part of the B vitamin family that helps support adrenal function and maintain a health immune and nervous system. Your body also uses vitamin B7 for the metabolism of fat and carbohydrates in your diet.

Available Laboratories: LabCorp, Quest Diagnostics

Vitamin B7

$309

$850

Sample Results

Vitamin B7

$850

$309

Sample Results

Test Details

Good dietary sources of vitamin B7 include organ meats, barley, brewer’s yeast, fortified cereals, corn, egg yolks, milk, royal jelly, soy, and wheat bran. Avocado, bread, broccoli, cauliflower, cheeses, chicken, fish, legumes, mushrooms, nuts, pork, potatoes, and spinach also provide biotin. As the daily requirement for Biotin is small and with this nutrient easily available in foods we consume, Biotin deficiency is rare.

There are however a few things that may cause a deficiency to occur, such as:

long term use of oral antibiotics
anti-seizure medication
malabsorption disorder
Intravenous feeding

Some signs or symptoms of Vitamin B7 deficiency are dry skin, brittle hair or hair loss, nervous system issues, muscle pains or intestinal tract issues.

This test may be ordered when an individual is experiencing symptoms of B7 deficiency or it may be used to monitor individuals with known intestinal or malabsorption disorders

Reviewed By: Dr. Kurt Kloss, MD
Last Reviewed Date: May 29, 2019

There are however a few things that may cause a deficiency to occur, such as:

long term use of oral antibiotics
anti-seizure medication
malabsorption disorder
Intravenous feeding

Some signs or symptoms of Vitamin B7 deficiency are dry skin, brittle hair or hair loss, nervous system issues, muscle pains or intestinal tract issues.

This test may be ordered when an individual is experiencing symptoms of B7 deficiency or it may be used to monitor individuals with known intestinal or malabsorption disorders

Reviewed By: Dr. Kurt Kloss, MD
Last Reviewed Date: May 29, 2019

1. Purchase Tests

Choose the test you want (be sure to pick the laboratory you want to use).

Pay by credit card or PayPal^®.

You pay directly and we do not bill your insurance.

(Note: to preserve lowest possible per test pricing, a single $10.00 lab fee is applied to one or more blood tests. You will not incur any additional charges at the lab.)

2. Visit a Lab

After purchasing your testing you will receive an email with your lab requisition. Bring this form to the laboratory.

NOTE: Be sure to visit the appropriate laboratory!

If you choose LabCorp only visit a Labcorp location.
If you choose Quest Diagnostics only visit a Quest location!

Find Your Lab Location.

No appointment is needed, but making one can minimize your wait time.
Click here for HOURS & APPOINTMENTS

If you have selected the option to have an At Home Test Kit delivered to you, you will receive your test kit in the mail within 5 to 7 business days. (Not all tests are available as At Home Test Kits.)

3. Get Results

We’ll email you when your results are ready. Sign into your account to view and download your result reports.

Certain result values may prompt a phone call from our ordering provider to ensure the patient is aware of their result.

Sample Type

Blood

Prepare For Your Test

No special prep required.

Also Known As

No other names specified