4U Health Comprehensive Food Sensitivity Kit
- What's Measured
- Easy At-Home Test Collection Kit
- Certified Lab Results
- Approved for Individuals 5+
- Telehealth Post-Test Support
This semiquantitative serology (antibody) test provides a numeric antibody level, which indicates whether you have detectable circulating antibodies to COVID-19 in your blood. And now for the science: the COVID-19 Antibody Test With Antibody Score detects IgG antibodies to the S1 spike protein domain of SARS-CoV-2, the virus that causes COVID-19. Spike protein IgG antibodies are produced by a protective immune response to a previous COVID-19 infection or vaccine.
Want more, check out Comprehensive COVID Antibody Test; our most complete test that checks for both nucleocapsid and spike covid antibodies.
Note: This is not a test to diagnose an active COVID-19 infection and would only be appropriate to identify whether you have developed an immune response to the virus as part of a prior infection or vaccine. To determine if you are currently infected, check out our COVID-19 Active Infection Test.
This COVID antibody test detects spike antibodies that are produced from both prior COVID infections and COVID vaccines. Therefore, vaccinated individuals cannot use this test to check for naturally occurring antibodies as a result of a prior COVID infection. If you are vaccinated and want to confirm you had a prior COVID infection, produced naturally occurring antibodies and want your COVID antibody level, check out our Comprehensive COVID Antibody Test.
Your mail-in antibody test kit is delivered in a plain envelope for a confidential testing experience insuring your medical privacy. In as little as five minutes, collect your sample from the comfort of home. Your comprehensive food sensitivity test kit uses a finger prick (tiny blood drop) sample collection. All of the test collection supplies along with detailed instructions are included. Once completed, mail it to our certified lab using the prepaid shipping label provided.
Parents- we’ve got you covered. Hospitals use the finger prick collection on newborns because it’s the the least intrusive and painless way to acquire a blood sample.
Once we receive the test, you’ll receive electronic results in 2-5 days. 4U Health at-home testing kits are hospital-grade quality so you can feel confident in the accuracy of your results.
Understanding your child’s antibody status gives you powerful insight as to whether an unvaccinated child had a prior or recent COVID-19 infection and already has some level of antibodies and protection against COVID-19, or to check whether antibodies from a previous vaccine or infection remain detectable over time. This test is approved for parents to easily collect a fingerstick dried blood spot (DBS) specimen from a kid 5-years-old and older.
Adults 18-years-old and over may self collect their own specimens for this test.
At no additional cost, you have access to telehealth support to help you better understand the results.
Usually within 2 to 5 days of your sample arriving at the lab, receive secure electronic results on your device of choice.
Simple to understand results designed to help you identify foods that may be causing you discomfort.
Your individualized report ranks your tolerance to 240 foods to help identify potential sensitivities.
Our hospital-grade results can help you identify foods you may want to incorporate into a temporary elimination diet. In addition, share your results with your doctor for additional guidance and treatment options.
How It Works
Order Your Test
Your test kit will be express delivered in 1 to 3 days in plain packaging, ensuring a confidential testing experience.
Collect Your Sample
Your kit contains everything you need to test from home. Collect your sample using the at home testing kit instructions. When you’re done, use the prepaid shipping label and envelope to send it back.
Fast, Accurate Results
Once we receive the test, you’ll receive electronic results in 2-5 days. 4UHealth at home testing kits are hospital-grade quality so you can feel confident in the accuracy of your results.
Get Physician Support
Have questions? We’ve got you covered. Your test results include telehealth support to help you understand your results.
Frequently Asked Questions
Why Non-Vaccinated Individuals Get Tested
You were never diagnosed with COVID-19: Discover if you were previously infected with COVID; confirm your body made a protective immune response to a prior COVID infection; learn your personal current COVID antibody status and score – knowing your COVID antibody score gives you the option to track your COVID antibody levels for changes over time.
You previously tested positive for COVID-19: Confirm you made a protective immune response to a recent or past infection; detect whether you still have protective COVID antibodies from your past infection; learn your current COVID antibody level that you may choose to track over time for changes.
You tested positive for antibodies in the past from a prior COVID-19 infection: Check whether you still have detectable COVID antibodies from your prior infection; learn your current COVID antibody level that you may choose to track over time for changes.
Why Vaccinated Individuals Get Tested
You previously received a COVID-19 vaccine: Confirm you made an immune response to a recent vaccine; check whether you still have protective COVID antibodies from your past immunization; learn your current COVID antibody level that you may choose to track over time for changes.
You previously received a COVID-19 vaccine and also experienced a COVID-19 infection (in either order): Confirm you made a protective immune response to your prior vaccination and infection; detect whether you still have protective COVID antibodies from your past immunization and infection; learn your current COVID antibody level that you may choose to track over time for changes.
You tested positive for antibodies in the past from a prior COVID-19 vaccine and/or infection: Check whether you still have detectable COVID antibodies from your prior vaccine and/or infection; learn your current COVID antibody level that you may choose to track over time for changes.
Please Note: If you’re vaccinated and want to confirm you had a previous COVID infection, you’ll need to check out our Comprehensive COVID Antibody Test.
Why Immunocompromised Individuals Get Tested
You have an immunodeficiency disorder that makes your body more susceptible to infections: Lets you determine whether you produced a protective immune response from your prior COVID vaccination and/or infection; allows you to intermittently track your COVID Antibody Score for interval changes to verify your antibody levels remain detectable over time.