Kefir is a tangy, probiotic-rich drink made by fermenting cow's or goat's milk or water with a culture starter called kefir ...

What is kefir and why is it linked to gut health? We tested it out for a month to see what benefits it has, if any.

Kefir is a fermented milk drink that’s packed full of probiotics which help promote the good bacteria in your gut.

Fitness I drank the viral gut health drink Kefir for a month — here’s what happened to my body Opinion By Jessica Downey published 16 April 2025 The many wonders of fermented milk Comments ( 0 ) ...

The benefits of drinking kefir include better gut health, brain health, and immunity. Here’s what happened when one writer tried drinking it daily.

Fermented drinks like kefir can help beneficial bacteria thrive in the gut, which can boost your overall health.

Opting for a drink that adds some protein will help with satiety. While milk and kefir offer complete protein for muscle repair and building, don’t shy away from plant-based sources either.

This kefir turned out to be safe to consume and lasted much longer than fresh milk ever did. From there, kefir became a staple drink and spread throughout the region, eventually the world.

How risky is raw milk, and are the health benefits worth the drawbacks? Experts on both side of the udder share their opinions on this divisive dairy product.