In the last couple of years, gut health has become a popular topic. Foods with probiotics, such as fermented foods, are being touted for their many benefits to our digestive system and overall health. 

Research even shows how poor gut health may play a role in the risk of developing chronic diseases, including chronic kidney disease (CKD), diabetes, and cancer. Learn more about gut health and how you can improve your gut health as a CKD patient.*

What is gut microbiota?

Gut microbiota refers to the entire collection of microorganisms (bacteria, viruses, and fungi) in your gut. These microorganisms can have both positive and negative effects on our health. Your diet choices, and use of antibiotics and other medications, can alter the type and balance of microorganisms in your gut. 

How does our gut microbiota keep us healthy?

With a healthy gut microbiota, the bacteria will produce short-chain fatty acids (SCFAs). These SFCAs can improve: 

• The structure and function of the digestive tract lining
• Glucose (sugar) and lipid (fat) metabolism
• Absorption of certain minerals, including calcium, magnesium, and iron

How do CKD and gut health affect each other?

Research shows that many individuals with CKD have lower amounts of beneficial gut bacteria, which may have already rendered them vulnerable to the disease. In turn, as CKD progresses, kidney function declines and leads to the buildup of urea (a waste product in our body). This damages the lining of the digestive tract and allows harmful bacteria to get into the bloodstream. 

Other waste products called “uremic solutes” can also build up, causing increased inflammation, cardiovascular risk, and insulin resistance. Fortunately, you can help your gut microbiota improve even while living with CKD. 

What are ways to improve your gut microbiota?

Eating foods that contain prebiotics and probiotics can be beneficial. Prebiotics are found in most fruits and vegetables that contain fiber and support the growth of good gut bacteria. Asparagus, onions, apples, garlic, oats, and barley are just a few examples. Probiotics are live bacteria that add to your healthy gut microbiota and limit the danger of potentially harmful bacteria. Some probiotic foods include yogurt, sauerkraut, kombucha, and kimchi. 

Some studies have found prebiotic and probiotic supplements to improve the gut microbiota in other chronic (long-term) diseases, but there is not much evidence of CKD currently. If you are interested in taking a gut-health supplement, discuss it with your doctor before using it to ensure it is safe for you.

*Alsing, S. (2021, September 28). Go With Your Gut: CKD and Gut Health – Kidney Diet Tips. Kidney Diet Tips. Retrieved March 15, 2023, from https://blogs.davita.com/kidney-diet-tips/go-with-your-gut-ckd-and-gut-health/?utm_source=facebook&utm_medium=organic_social&utm_campaign=misc 

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