28/11/2025
New studies show that drinking kefir daily may help reverse or at least significantly reduce the symptoms of lactose intolerance. Kefir’s powerful combination of live bacteria and yeasts breaks down much of the lactose during fermentation, and the enzymes produced by these microbes help your gut digest the remaining lactose more easily.
Here’s how it works:
📑 Reduces lactose content:
During fermentation, kefir’s microorganisms consume lactose and convert it into lactic acid. This process dramatically lowers the lactose content, making kefir far easier to tolerate than regular milk.
📑 Provides beneficial enzymes:
Kefir’s bacteria naturally produce β-galactosidase — the very enzyme people with lactose intolerance don’t make enough of. This helps the body break down lactose more effectively.
📑 Boosts gut microbiome:
By introducing beneficial microbes into the gut, kefir supports a healthier digestive system overall. These microbes assist in breaking down lactose and may improve long-term tolerance.
PMID: 12728216