Why is my poop yellow?

Case of the mustard poops? You have come to the right place for your yellow poop questions.

Yellow stool can be caused from the food you are eating, but often is the result of a bowel movement passing through your digestive track far too quickly. When this happens you are left with something that will range in color from French’s classic yellow mustard to the somewhat spicy ballpark stadium mustard.

Possible Causes:

If you are experiencing yellow poop there is a chance you might have gastroesophageal reflux disease (GERD).

GERD is a condition that occurs when the contents of your stomach (food or liquid) seep into the esophagus. Other symptoms of GERD can include heartburn, chest pain, sore throat, coughing, and wheezing.

Yellow poop can also occur from your diet. If your diet has recently been rich with carrots, sweet potatoes or yellow artificial food coloring then it could have an effect. If you are eating yellow frosting from a can and can’t figure out why your poop is yellow then you are an idiot and it is no wonder you are eating yellow frosting from a can.

As a side note, if you eat a ton of corn all of the kernel in your poop may cause the poop to look yellow, but it’s just corn. You should check out corn in my poop.

Insufficient bile output could also result in yellow poop. Bile is a fluid produced in the liver that helps along the digestion process. This is what makes your poop brown. If you constantly see yellow poop, your bile salts could be reduced.

The discoloration could also be the sign of a bacterial infection in the intestines.

Babies may experience yellow poop or lighter color poop while they are breastfeeding or drinking bottle milk. This is a normal occurrence.


If you are a fan of ketchup over mustard you should avoid eating foods that increase the symptoms of GERD, these include but are not limited to: fatty foods, alcohol, coffee, peppermint, and chocolate.

Yellow poop may or may not be serious, but as always, we just write about poop, we have no medical background so pick up that phone and consult a doctor.

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