Ever glanced into the toilet after you’ve peed and wondered whether it’s telling you anything? An expert says it can offer real clues.
The shade of your urine can reflect what’s going on in your body, potentially pointing to dehydration, infections, or even kidney-related problems.
Much like bowel movements, urine color can act as a simple snapshot of internal health.
Colleen Muñoz, co-founder of the Hydration Health Center at the University of Hartford, discussed the topic on the Am I Doing It Wrong? podcast, breaking down what clear, dark, and yellow urine may indicate.
Hosts Raj Punjabi and Noah Michelson asked Muñoz about common assumptions people make, and the conversation went beyond the typical dehydration warning.
One major takeaway: in some situations, drinking too much water can also be risky—and in rare cases, it can be fatal.
Muñoz said many people typically need somewhere in the range of two to four liters of water daily, though she noted it’s always sensible to confirm what’s right for you with a doctor.
She also pointed out that hydration doesn’t come only from plain water—drinks like tea, coffee, and juice, along with certain foods, can contribute too. As a general rule of thumb, she said pale yellow urine—similar to “lemonade”—often suggests you’re well hydrated.
“I’m not saying that that’s a perfect marker, but it’s a very easily accessible one and it actually gives us a lot of good information,” Muñoz said. “We’re normally looking for, like, a light yellow color — like lemonade or a straw kind of color.”
“That’s one of those things that I still have a lot of people tell me,” she said. “People who are well educated in biology will tell me, like, ‘My urine was clear today, so that’s good, right?’ I’m like, ‘No, no, no, no, no.’ You know, there is such a thing as drinking too much water.”
“[Drinking too much water] is a real thing,” Muñoz, explained, noting that it’s not common, but it can be dangerous.
She said: “[It doesn’t happen] as often as you would think, relative to somebody who is underhydrated — that’s definitely a more common scenario — but it’s something we need to pay attention to.”
Muñoz explained that the body’s electrolytes must remain balanced to support key functions such as healthy blood chemistry, heart rhythm, and muscle performance. If that balance shifts too far, she warned it may lead to symptoms like nausea and dizziness—and in extreme cases, it can be deadly.
Scientific American reports that excessive water intake can trigger hyponatremia, a condition where sodium levels in the blood drop too low.
In more serious situations, hyponatremia can progress to water intoxication.
“If they get too dilute, we start to have some pretty severe ramifications, largely related to our nervous system … [including] brain swelling, coma, [and then] death … and pretty quick,” Muñoz said.
One widely reported case occurred in 2007, when a woman died from water intoxication after taking part in a radio station contest offering a Nintendo Wii console as a prize.
The competition reportedly involved consuming as much water as possible over a single day.
The 28-year-old woman died after drinking roughly six liters in around three hours while participating in a “hold your wee” challenge.
“Unfortunately they didn’t consult anybody before they did this,” Muñoz said of the radio station.