Blood pregnancy tests can tell you if you're pregnant 6 to 14 days after conception. You'll need to wait longer before taking a urine test.

Blood and urine tests have been found to detect the amount of ultraprocessed foods (UPFs) a person eats, according to new research. Using machine learning, scientists at the National Institutes of ...

Molecules in blood and urine may reveal how much energy a person consumes from ultraprocessed foods, a key step to understanding the impact of the products that make up nearly 60% of the American diet ...

Each year, 10 million episodes are treated with antibiotics, but half of the time subsequent urine testing fails to confirm ...

Sets of metabolites found in blood and urine reliably correspond with how much energy from ultra-processed food a person consumes, according to a new study. Sets of metabolites found in blood and ...

A new blood test that detects a hallmark of Alzheimer's is poised to change the way doctors diagnose and treat the disease. The test, the first of its kind to be cleared by the Food and Drug ...