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MORE THAN A PROBIOTIC: WHY TRADITIONAL KEFIR HAS NO ANALOGUES More Than a Probiotic: Why Traditional Kefir Has No Analogues

Published in Dairy industry · Pages 10–15 · Rubric: Review article
DOI: https://doi.org/10.21603/1019-8946-2026-4-92 · EDN: MAPFUK
Received: 18.02.2026 Accepted: 09.06.2026 Published: 17.08.2026 Language of publication: RUS
Kefir is a popular Russian fermented dairy product. While it remains a staple in the product range of most city dairies, kefir sales are expected to decline by 3% in 2025 compared to 2024 and by 5% compared to 2023. This decline is due to a growing interest in other fermented milk products, particularly probiotics and functional foods. This article demonstrates the unique properties of traditional kefir and assesses its potential as a product with proven probiotic and therapeutic properties. The study focused on the technical regulations of the Eurasian Economic Union (EAEU) and scientific literature sources from electronic databases. A metagenomic analysis of traditional kefir grains demonstrated a higher microbial diversity compared to kefir products obtained using pure freezedried kefir cultures. Traditional kefir production technology ensures the highest microbial diversity, which underlies its multifaceted therapeutic properties, ranging from modulation of the gut microbiota and immunomodulatory effects to antimicrobial, antioxidant, hypotensive, and cholesterol-lowering activities. Attempts to reproduce the product using pure freeze-dried cultures simplify the microbial consortium and, consequently, reduce its dietary and therapeutic properties. Further research is needed to standardize and preserve authentic kefir cultures to explain their mechanisms of action and specific components
kefir, kefir drinks, fermented dairy products, kefiran, kefir grains, lactic acid microorganisms, probiotic properties
Funding
The material was prepared as part of the state assignment FGMF-2025-0014
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