This at-home lab test measures your body's immune response to 96 foods to help guide you on what types of food to prioritize in a two-part elimination diet.

Clinicians typically advise against IgG testing because it can provide inaccurate and misleading information, causing people to cut out nutritious foods from their diet. There's limited evidence supporting the accuracy of IgG testing to check for food sensitivities.

within 5 to 7 business days Results for most tests are typically available within 5 to 7 business days of the lab processing your sample and if there are any delays or changes, this will be reflected in your dashboard as well.

Reference Ranges There are four classifications of reactivity, 0-3, with 0 being normal and 3 being highly reactive.

Food sensitivity symptoms can mimic mild allergic reactions:

• Brain fog.
• Fatigue.
• Flushed skin.
• Itching.
• Joint or muscle pain.
• Headaches or migraines.
• Sneezing.
• Stuffy or runny nose.

Everlywell tests measure a variety of biomarkers in your body so you can better understand different aspects of your wellness. LDL cholesterol is an example of a biomarker (it can help predict heart disease risk), but there are many more.

We have tests as low as $49 and you may use your FSA/HSA account to pay for one of our at-home lab tests. Your Everlywell test is authorized by a physician, so it should fit the guidelines for most FSA/HSA coverage.

The most accurate ones are:

• Blood test: For testing for coeliac disease and for gluten intolerance.
• Hydrogen breath test: Used to diagnose lactose intolerance. ​You'll be asked to blow up a balloon-like bag. You'll then be given a drink of lactose solution and your breath will be tested after roughly 30 minutes.

How long will it take to get my results? Bacterial cultures usually require 24-48 hours to grow the pathogen and obtain a pure culture for further testing. Cultures for fungus and tuberculosis may take much longer - up to 6 to 8 weeks since these microbes grow more slowly.

It can be difficult to tell the difference between the symptoms of food allergy and food intolerance. Usually, symptoms caused by food allergy develop very soon after consuming the food. While symptoms caused by food intolerance can be immediate, they may also take 12 to 24 hours to develop.

Test results will give each tested food a “score”. This score refers to the blood's IgG levels in reaction to that food, often ranked numerically as well as across: No reactivity – A normal and non-sensitive IgG response. Mild reactivity – A slightly elevated IgG response, usually with few symptoms.

What are the most common types of food intolerance?

• Lactose: People who are lactose intolerant don't make enough lactase enzyme to break down lactose, a sugar found in milk and dairy products.
• Histamine: Histamines are naturally occurring chemicals in foods like cheese, pineapples, bananas, avocados and chocolate.