What makes your stool yellow?

If you’re here reading this, it’s probably because you’ve been spending some quality time on the porcelain throne and noticed that your stool is looking more like a canary than a chocolate bar. But don’t worry, my friend – yellow stools are nothing to be alarmed about (unless of course, they come with other symptoms). In fact, there are lots of reasons why your poop may be sunnier than usual.

The Scoop on Poop

Before we get into what could cause yellow stools, let’s take a moment to appreciate something truly miraculous: poop. Yes folks, feces may not be the most glamorous topic but hear me out! Our digestive system has an incredibly complex job – breaking down food and absorbing nutrients while also getting rid of waste products. And at the end of all that work comes poop…or stool if we want to sound fancy.

But what actually makes up our bowel movements? Here’s a quick breakdown:

  • Water
  • Undigested food particles (think corn kernels or fibrous veggies)
  • Dead cells from the lining of our intestines
  • Bacteria
  • Bile

It’s bile that plays an important role when it comes to explaining why your stool might turn yellow.

When you think “bile”, I’m sure yellow is one color that immediately comes to mind…right? No? Just me then. For those who need a refresher: bile is produced in your liver and helps break down fats in your diet so they can be properly absorbed by your body. When everything is working normally, bile gets reabsorbed in our small intestine and doesn’t make much impact on how our poop looks.

However, if something goes awry with digestion or absorption processes (which happens pretty often), bile can show up more prominently in our stool – leading to that yellow hue. Here are a few reasons why this could be happening:

Reason #1: Diet Changes

Are you eating more turmeric or mustard than usual? These bright yellow foods contain pigments known as curcumin and turmeric that can add color to our poop – often producing yellow stools.

Similarly, food coloring agents used in many processed snacks can give your stool an artificial glow-up.

Did You Know?

Certain medications like antibiotics or iron supplements can also cause stool discoloration including turning it a lighter shade of yellow!

Reason #2: Pancreatic Issues

Inside our pancreas is something called the pancreatic duct, which carries digestive enzymes from the pancreas to our small intestine. If there’s a blockage in this tube for any reason (like inflammation due to gallstones), bile might not be able to drain properly. The result? A backup of bilirubin (a byproduct of old red blood cells) and other waste products in the bloodstream which commonly presents as yellowness around the eyes and skin (jaundice) but may affect stool color too!

Don’t Panic about Jaundice

If you’re experiencing jaundice symptoms, contact your doctor immediately! It’s not always related to pancreatic issues but if it is then treatment will depend on what exactly caused the inflammation — your doctor will know best how they should proceed based on lab results at diagnosis.

Reason #3: Liver Problems

On occasion, high levels of bilirubin buildup in liver tissue due to genetic disorders involving erythrocyte metabolism such as Gilbert Syndrome lead us down yeallow path[REPHRASE]. Cirrhosis accompanies by hepatic encephalopathy also causes pale colored stools.

Liver diseases increase bilirubin load possibly resulting into light-colored feces lacking normal contrast between Brown and Gal.

Most of the time, yellow stools will resolve on their own – especially if they’re due to a recent dietary change or medication you’ve started taking. However, there are a few circumstances in which stool color could indicate something more serious:

  • Clay-colored stools: this suggests bile isn’t making it into your small intestine at all and requires emergency medical attention.
  • Bloody stool: red or black poop can be caused by bleeding in your digestive tract and should prompt you to seek immediate care (In fact bullet point is not required as the first sentence contains all necessary information).
  • Yellow skin or eyes with dark urine: as mentioned earlier this indicates too much bilirubin buildup in blood leading into potential liver malfunctioning.

Yellows Stools? No Problem!

So there you have it! As long as those golden nuggets aren’t accompanied by other concerning symptoms, rest assured that yellow stools are likely related to something non-threatening like what we eat daily1. Keep an eye out for any changes over time from one day — things tend bounce back once our body adapts!2 If conditions don’t improve even after changing diet patterns then seeing doctor would make sense.3



  1. NPs attending introductory GI seminars usually laugh when these juicy brown topics come up! 

  2. Trust me, I’m speaking from experience here… 

  3. Perhaps use morgue file here… 

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