Researchers have discovered a new enzyme, bilirubin reductase, that gives urine its yellow color. These findings could help better understand the connection between the gut and health issues like ...

Scientists finally resolved a mystery you may not have known needed solving — we now know why urine is yellow. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

MANY chemical tests for bilirubin in urine have been described, none very satisfactory and none very sensitive. In blood, bilirubin is estimated quantitatively and qualitatively by the well-known ...