Is neon-yellow urine normal? Experts weigh in

A doctor advising several Trump cabinet members praised having urine the colour of Mountain Dew, crediting an all-meat, fermented-food diet. Experts say urine is normally yellow due to a pigment called urobilin made by gut bacteria, and gets lighter with more fluids. Colour charts are imprecise, a nephrologist notes, so most people should rely on thirst rather than urine shade.