A doctor who advises several Trump cabinet members on their diets rhapsodized this summer about having urine the color of Mountain Dew, thanks to a diet consisting entirely of meat and fermented foods.

What you consume does determine what you see in the toilet. But should urine be neon yellow – or some other hue? Here’s what you need to know.

What color should urine be?

Urine is normally a shade of yellow owing to a pigment called urobilin, which your gut bacteria produce. The more diluted it is by extra fluid intake, the lighter its shade – so urine is typically darker in the morning or when you’re dehydrated.

You may have seen charts that indicate what color and shade urine “should” be, but “they are considered imprecise” and experts don’t rely on them for serious purposes such as managing kidney disease, says Suzanne Watnick, a nephrologist at the University of Washington.…