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Vitamins and minerals are micronutrients that support many crucial functions throughout the body. If a person has concerns over their vitamin and mineral levels, they can use an at-home test to check for deficiencies.

A quick look at 5 of the best at-home vitamin deficiency tests

Although the Dietary Guidelines for Americans 2020–2025 indicate that a person should aim to meet their vitamin and mineral needs through their diet, sometimes they may need a multivitamin to supplement their intake.

When a person develops a nutritional deficiency, the body may produce signs and symptoms, some of which can go unnoticed. Though an at-home test should not substitute for a doctor’s or nutritionist’s advice, it may indicate missing nutrients in a person’s diet.

The Centers for Disease Control and Prevention (CDC) lists several of the most common deficiencies in the United States. These include:

Learn more about vitamins and how they work here.

High risk groups

In a 2019 study, researchers identified specific groups of people with a higher risk of developing vitamin or mineral deficiencies. The groups included:

  • undernourished people
  • older adults
  • people who are pregnant
  • adolescents
  • young children

MNT chooses at-home tests that meet the following criteria where possible:

  • Laboratories: Where possible, MNT will choose companies that process test samples in CLIA-certified labs. This means they follow state and federal regulations.
  • Budget: MNT chooses at-home tests that are suitable for a wide range of budgets.
  • Privacy: MNT includes companies that offer robust and transparent privacy measures, such as data protection and discreet packaging.
  • Test result speed: MNT selects companies that inform customers when they will receive their test results and whether they will receive them via email, app, or phone.
  • Further support: MNT will indicate whether a company offers further support, such as a follow-up phone consultation with a doctor to discuss test results.

Below, we list some of the top vitamin deficiency tests available online.

Please note that the writer of this article has not tried these products. All information presented is purely research-based and correct at the time of publication.

All quotes are provided by a Medical News Today Editor, Lois Zoppi, who received a free Essential Vitamins test from LetsGetChecked to review.

Medical News Today follows a strict product selection and vetting process. Learn more here.

Best overall: LetsGetChecked Micronutrient Test

  • Price: around $179
  • Vitamins and minerals tested: 7
  • Collection method: finger-prick blood sample
  • Turnaround time: 2–5 days
  • Who it’s best for: Individuals wanting to test for several deficiencies at once

The LetsGetChecked micronutrient test is a finger prick test that a person can carry out at home.

The test can check for deficiencies in several vitamins and minerals, including:

When a person gets their test kit, they should register it online, follow instructions to collect a sample and return it for testing.

Once the lab receives the test, LetsGetChecked states a person can expect to receive their results within a few days.

LetsGetChecked uses CLIA-certified labs to test samples. The company offers follow-up support if necessary.

LetsGetChecked has a customer rating of 4.6 out of 5 stars on Trustpilot. Positive reviews mention good customer service, timely delivery, and ease of use. Negative reviews frequently mention difficulty obtaining results and tests being close to expiration dates.

Learn more about LetsGetChecked here.

Use code “HEALTHLINE25” for 25% off

Best for vitamin D deficiency: Everlywell Vitamin D and Inflammation Test

  • Price: around $99
  • Vitamins and minerals tested: 1
  • Collection method: finger-prick blood sample
  • Turnaround time: 5–7 days
  • Who it’s best for: Individuals who wish to test for vitamin D deficiency

Everlywell offers a test that looks at a person’s vitamin D levels and the measure of c-reactive protein (CRP), called hs-CRP. The liver makes CRP when there is inflammation in the body.

This finger prick test allows a person to easily collect their sample and send it to a lab for testing. Independent, board certified doctors will review the results and explain them in easy-to-understand terms.

The company then sends the results to a person’s online account, which they access via a secure login.

The test costs around $99, but if a person becomes an Everlywell member, the price lowers to around $25.

The company accepts FSA and HSA payments.

Everlywell states it uses CLIA-certified labs. It offers follow-up advice for some of its tests but not all. Everlywell encourages individuals to discuss their results with a healthcare professional.

Everlywell has a customer rating of 2.0 out of 5 stars on Trustpilot. Positive reviews mention good products and timely delivery. Negative reviews frequently mention difficulties in obtaining results and doing the test.

Learn more about Everlywell here.

Best for an iron test: Labcorp Ferritin Blood Test

  • Price: around $49
  • Vitamins and minerals tested: 1
  • Collection method: finger-prick blood sample
  • Turnaround time: up to 2 weeks
  • Who it’s best for: Those who are prone to iron deficiency anemia

This test checks for deficiencies in ferritin, a protein that stores iron in the blood cells. This test may be best for people who are prone to becoming anemic.

A person must visit a Labcorp testing site to take the test. This may be a more suitable option for people who feel uncomfortable taking a blood sample themselves. Once the lab processes their sample, a person can expect their results in up to 2 weeks.

There are no special preparations a person needs to make to take this test. Labcorp accepts HSA and FSA payments.

Labcorp states that all of its labs are CLIA-certified.

Labcorp has a customer rating of 1.4 out of a possible 5 stars on Trustpilot based on over 110 reviews. Positive reviews mention that they had great experiences in their local Labcorp center. Negative reviews frequently mention poor customer service and long waiting times.

Best for essential vitamin tests: LetsGetChecked Essential Vitamin Test

  • Price: around $110
  • Vitamins and minerals tested: 3
  • Collection method: finger-prick blood sample
  • Turnaround time: 2–5 days
  • Who it’s best for: Individuals wanting to test for several deficiencies at once with a quick turnaround time

LetsGetChecked also offers a less extensive test for vitamin deficiencies with its Essential Vitamin Test. The test checks the blood for deficiencies in three vitamins, including:

  • vitamin D
  • vitamin B12
  • vitamin E

Once a person receives the test, they should register it on the LetsGetChecked website and follow the instructions.

The home test involves a finger-prick blood sample collection that an individual will send to a lab the same day.

Once received, the company’s team of doctors will review the test, and the lab will send the results to the person within 2–5 days.

According to the company, it tests samples in a CLIA-certified lab. Its clinical team can also offer follow-up support if needed.

LetsGetChecked has a customer rating of 4.6 out of 5 stars on Trustpilot. Positive reviews mention good customer service, timely delivery, and ease of use. Negative reviews frequently mention difficulty obtaining results and tests being close to expiration dates.

“I would recommend this product to MNT readers. It’s an easily-accessible way to access tests that allow you to gain insight into your health. The ordering and testing process is very easy and relatively pain-free, and results come quickly.” — Lois Zoppi, MNT Editor

Use code “HEALTHLINE25” for 25% off

Best lab-visit test: Labcorp Vitamin Deficiency Blood Test

  • Price: around $159
  • Vitamins and minerals tested: 3
  • Collection method: blood sample
  • Turnaround time: up to 2 weeks
  • Who it’s best for: Individuals that are not in a rush for results

This test checks for three vitamins, including:

  • vitamin B12
  • folate
  • vitamin D

This test involves a person attending a local Labcorp testing center. There, a healthcare professional will collect the required blood sample.

Before this blood test, a person must fast for 12 hours. They can drink water during this time.

Results can take up to 2 weeks to come back. A person can access their results via an online portal. Labcorp will phone or email if results require immediate attention to discuss this with the customer.

Labcorp states that every one of its laboratories has a CLIA certificate.

Positive reviews on Labcorp’s Trustpilot page mention good patient care and efficient service at the testing sites. However, many negative reviews mention problems with customer service.

The table below compares each of the vitamin deficiency tests in this article for collection method, price, result turnaround time, and more.

Number of vitamins and mineralsCollection methodResults delivery methodTime to receive results after submissionPrice
LetsGetChecked Micronutrient Test7finger-prickonline portal2–5 daysaround $179
Everlywell Vitamin D and Inflammation Test1finger-prickonline portal2–5 daysaround $99
LetsGetChecked Essential Vitamin Test3finger-prickonline portal2–5 daysaround $110
Labcorp Ferritin Blood Test1finger-prickonline portalup to 2 weeksaround $49
Labcorp Vitamin Deficiency Blood Test3blood sampleonline portalaround $159

A person interested in seeing if they may have a vitamin deficiency can purchase a home-testing kit to check for possible deficiencies. However, it is important to consider the pros and cons of these services.

Pros

  • The test kits are convenient.
  • The results are confidential.
  • The test kits are easy to use.
  • Tests often come in discrete packaging.
  • The tests include complete instructions for providing a sample.
  • A person can get their results quickly with certain companies.

Cons

  • People may still have to visit a doctor if the results show a deficiency.
  • People may have to contact a doctor if they have symptoms but a negative test result.
  • At-home tests can be expensive, and it may be more cost-effective to go directly through a lab.

People may wish to consider these factors before buying a test online:

  • The nutrients tested: Many companies offer comprehensive panels which test for several vitamins and minerals. However, some tests only check the levels of certain vitamins. A person should pick the test that best suits their needs.
  • The collection method: Anyone uncomfortable drawing a finger-prick blood sample may prefer a test that relies on a saliva sample instead.
  • The timing of results: Some tests have shorter turnaround times, but these may be more expensive.
  • Price: Different at-home vitamin deficiency tests fit different budgets. Those that test for a wider range of vitamins may cost more.

If a test shows that a person has a vitamin deficiency, they should contact a doctor. A person may also wish to inform a doctor if their test does not show a particular deficiency.

If a person receives treatment from a doctor, they may wish to conduct the test again after their treatment ends to see how their vitamin levels have changed.

A person should not make health decisions based on the results of an at-home test without first consulting a doctor.

Regardless of the results of an at-home vitamin deficiency test, a person should consider consulting a doctor. If their results are positive for a deficiency, a doctor will likely double-check them, run other appropriate tests when needed, and help diagnose any underlying cause before setting out a treatment plan.

If an individual’s results are negative, but they are still experiencing symptoms of a vitamin or mineral deficiency, a doctor may carry out further tests to diagnose any underlying conditions.

A person should not attempt to treat a vitamin or mineral deficiency without first discussing it with a doctor.

Below, we answer some of the top frequently asked questions about vitamin deficiency tests.

Are at-home vitamin deficiency tests accurate?

The accuracy depends on the company, the sample collection, and various procedures. If the company has designed its devices in line with medical guidelines and people take their samples correctly, the test results may be accurate.

The Food and Drug Administration (FDA) has a list of approved at-home tests, and anyone concerned about accuracy may prefer to use one.

To help ensure accuracy, carefully follow the instructions about taking, storing, and sending off samples.

Who should use an at-home vitamin deficiency test?

Anyone who thinks they may have an imbalance in vitamin or mineral levels should consider speaking with a healthcare professional.

For example, an at-home vitamin deficiency test is a useful alternative if a person does not have access to healthcare or cannot leave the house.

What should I do if I have a deficiency or excess of a vitamin or mineral?

Some at-home testing companies provide supplements on a subscription basis.

A person should consult a healthcare professional to understand the reason for any vitamin or mineral excess or deficiency before deciding on a treatment.

Genetics, prescription medications, and other factors can affect levels of vitamins and minerals in the body, and a healthcare professional will consider these.

What causes a vitamin deficiency?

In most cases, a vitamin deficiency stems from not having enough nutrients in the diet.

People who are most at risk of developing a vitamin deficiency are people with malnourishment, older adults, pregnant people, teenagers, and young children.

How can I tell if I have a vitamin deficiency?

The specific symptoms depend on which vitamin deficiency a person has.

For example, a lack of vitamin D may contribute to hair loss. A vitamin E deficiency may cause dry skin, and a vitamin B3 deficiency can cause diarrhea and photosensitive dermatitis, a skin reaction to different types of light.

At-home vitamin deficiency tests check levels of vitamins and minerals in a blood or saliva sample. They are generally convenient, but they can be expensive.

Anyone concerned about a deficiency should consult a doctor, especially if a test returns a positive result. The doctor can check for any underlying health issues, perform further tests, and offer treatment if needed.