Microbiome tests measure the microorganisms in a person’s gastrointestinal (GI) tract. These tests can give the person an idea of the types and amounts of microorganisms in their gut. However, people ...

A doctor can diagnose food allergies using a variety of tests, including skin prick tests, blood tests, and oral food challenges. Home test kits are also available, though they have several downsides ...

If you’re experiencing digestive issues or diarrhea and suspect gluten is the cause, a celiac test could be illuminating, especially if you have a family history of celiac disease. At-home celiac test ...

Heavy metals can build up in the body and cause a wide range of symptoms, such as nausea, vomiting, and behavioral changes. Heavy metal tests require urine or blood samples. People may take a heavy ...

Have your COVID-19 rapid tests expired? Don’t toss them yet. Federal regulators have extended some tests’ expiration dates, meaning certain offerings are now usable for months longer. The reason for ...

To grow good plants, you need good soil. The only way to tell what your soil really needs is to take a soil test. Applying too much fertilizer could be detrimental to your plants. You could waste ...

Each week, we answer frequently asked questions about life during the coronavirus crisis. If you have a question you'd like us to consider for a future post, email us at goatsandsoda@npr.org with the ...