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Decoding Poop Colours: What the colour of your Stool says about your Gut Health

As a gut health nutritionist, I am passionate about promoting digestive wellness and helping people understand the intricate workings of their bodies. Today, we delve into an often overlooked yet crucial aspect of gut health: the colour of your poop. Yes, you read that right! The colour of your stool can provide valuable insights into the state of your digestive system.

Let's explore why the colour of your poop is important and what different colours might signify.

Colours and What They Mean

Brown (aka the gold standard): Let's start with the most common and ideal colour: brown. Normal brown stools indicate a healthy and well-functioning digestive system. The colour comes from the breakdown of bile, a digestive fluid produced by the liver. Bile helps break down fats and gives your stool its characteristic brown hue. So, if your poop is consistently brown, it's generally a positive sign that your digestive system is operating smoothly.

Green: While it may sound alarming, green poop is often harmless and can be attributed to various factors, like consuming leafy green vegetables, certain food dyes, or an abundance of chlorophyll-rich foods. Rapid transit through the intestines can also result in bile not having enough time to break down completely, leaving the stool greenish. However, if green stools persist for an extended period or are accompanied by other symptoms, it's wise to dig a bit deeper to figure out why this is happening.

Yellow: A yellowish tinge to your stool can indicate an increased presence of fat in the stool. This can occur when your body has difficulty absorbing fats or when there's an excess of fat in your diet. Certain medical conditions, such as liver or gallbladder disorders, can also cause yellow stools. If you consistently notice yellow stool and it's accompanied by other digestive issues, it's essential to seek help from a trusted professional.

Black or Tarry: Black, sticky, or tarry stools can be a cause for concern as they may indicate bleeding in the upper gastrointestinal tract. The dark colour results from the digestion of blood in the stomach or small intestine. It's crucial to promptly consult a healthcare professional if you experience these symptoms, as they require immediate attention (Note: black stools can also be caused by Bismuth and Iron supplements).

Red: If you notice red-coloured stools, it can be quite alarming. However, it's important to consider the source before jumping to conclusions. Red food dyes, beets, or certain medications can cause stool to appear red. However, red stools can also be a sign of gastrointestinal bleeding, hemorrhoids, or more severe conditions. Any unexplained presence of red in your stool should be evaluated by a healthcare professional.

Pale or Clay-coloured: Light-coloured or clay-coloured stools may indicate a lack of bile in the stool, possibly due to issues with the liver, gallbladder, or bile ducts. It could be an indication of a blockage that prevents bile from reaching the intestines. If you consistently experience pale or clay-coloured stools, it's essential to consult a healthcare professional for further evaluation.


While it may seem odd to pay attention to the colour of your poop, it can provide valuable insights into your gut health. Remember, variations in stool colour can occur due to diet, medication, or temporary changes in digestion. However, persistent or unusual stool colours should not be ignored. They may be an indicator of an underlying issue that requires attention.

Maintaining a healthy gut goes beyond colour analysis. A well-balanced diet rich in fibre, probiotics, and plenty of water, combined with regular exercise, plays a crucial role in supporting optimal digestive function. If you have concerns about your digestive health or notice persistent changes in your stool colour, book a complimentary consultation with me so we can dive into your customized gut-healing plan.

Your digestive system is an incredible part of your body, and understanding its cues, including the colour of your poop, can empower you to take charge of your gut health and overall well-being.


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