What are the potential side effects of drinking kefir?

Kefir can cause short-term digestive issues such as gas, bloating, cramps, and diarrhea due to the rapid increase in gut bacteria. For some, it may also worsen existing conditions like IBS or SIBO.

Can kefir be dangerous for some people?

Yes, for individuals with severely weakened immune systems, the bacteria in kefir can potentially trigger dangerous infections, and in rare cases, lead to sepsis.

How should one start drinking kefir to avoid side effects?

Experts advise starting with small portions of kefir and gradually increasing the intake over time to allow the gut to adjust to the new bacteria.

Home / Health / Kefir Craze: Gut Health Boon or Brewing Danger?

Kefir Craze: Gut Health Boon or Brewing Danger?

4 Feb

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Summary

Kefir sales surged 400% at Tesco in 18 months.
It contains billions of microbes, boosting gut health.
Risks include gas, bloating, and potential infections.

Kefir Craze: Gut Health Boon or Brewing Danger?

Kefir, a fermented milk drink, has experienced a significant surge in popularity, with sales at Tesco reportedly increasing by 400% in just 18 months. This ancient beverage, originating from Russia and Mongolia, is consumed for its potential to boost gut health. It is packed with billions of beneficial microbes, offering more than yogurt.

However, experts warn that the sudden introduction of these microbes can cause short-term digestive discomforts such as gas, bloating, cramps, and diarrhea. To mitigate these effects, it is recommended to start with small portions and gradually increase intake. Certain conditions, like Irritable Bowel Syndrome (IBS) and Small Intestine Bacterial Overgrowth (SIBO), might be aggravated by kefir.

In rare and extreme cases, particularly for individuals with severely compromised immune systems, kefir can lead to dangerous infections. A case highlighted involved a 70-year-old man who developed sepsis after consuming a probiotic similar to kefir, leading to a fatal outcome. Those with significant underlying health issues, including HIV, organ transplant recipients, or those undergoing cancer treatment, should consult a doctor before consuming kefir.