Scientists can detect junk food consumption in blood and urine tests

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 Health (NIH) identified hundreds of metabolites (molecules produced during metabolism) that correlated with processed food intake.

The team developed a "biomarker score" that predicts ultraprocessed food intake based on metabolite measurements in blood and urine, according to Erikka Loftfield...