Q: What is kefir and does it provide any health benefits?

A: Kefir is a fermented dairy drink made by adding kefir grains — cultures of yeast and lactic acid bacteria — to milk. These grains ferment the milk, resulting in a tangy, slightly fizzy beverage with a texture similar to yogurt. Kefir can also be made from non-dairy alternatives like coconut milk or water, making it accessible for those who are lactose intolerant or vegan.

Kefir is known for its potential health benefits, largely due to its high probiotic content. Probiotics are beneficial bacteria that support gut health by promoting a balanced microbiome. Regular consumption of kefir may aid digestion and improve symptoms of conditions like irritable bowel syndrome (IBS). Kefir also contains nutrients like calcium, protein, and vitamins B12 and K2, necessary for bone health and overall wellness.

Additionally, some research suggests kefir may boost the immune system, enhance lactose digestion, and have antimicrobial properties. However, more studies are needed to fully confirm these health benefits.

(Environmental Nutrition is the award-winning independent newsletter written by nutrition experts dedicated to providing readers up-to-date, accurate information about health and nutrition in clear, concise English. For more information, visit www.environmentalnutrition.com.)

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