Your gut and your brain are more connected than you might think, and a new study suggests that could be key to catching ...

“Fasting insulin is one of the most crucial — and most overlooked — biomarkers in medicine because it reveals how hard your ...

Blood draws for several kinds of diagnostic tests require you to fast for several hours. Eating or drinking anything besides water can skew the results, leading to you needing to be retested. You may ...

A mysterious gut hormone may be behind many cases of chronic diarrhea, especially in people with undiagnosed bile acid malabsorption, a condition often mistaken for irritable bowel syndrome.

This article was reviewed by Felix Gussone, MD. In this guide, we’ll break down what most biomarker lab tests measure, how to prepare for them, and what to do once you receive your results. Not ...

A person should only fast before a blood test if their doctor or healthcare professional specifically instructs them to do so. Not all blood tests require fasting. If a doctor or healthcare ...