The Science and Recognition Behind AB-Kefir
From a century of kefir science to human trials, patents, and international awards.
AB-Kefir is supported by a growing body of scientific evidence, including five peer-reviewed publications, two human clinical studies, and preclinical research exploring gastrointestinal, gut-brain, metabolic, and weight-related outcomes. Its research foundation is further supported by three patents and international invention awards.
Together, these studies reflect the continued scientific development of AB-Kefir, from human clinical evaluation to mechanistic research and protected innovation.

A century of kefir science
Kefir is one of the world's most studied fermented foods. Its link to gut and general health reaches back more than a century, to the work of Nobel laureate Élie Metchnikoff, and continues today in modern microbiome research. AB-Kefir builds on this established foundation and adds its own body of evidence specific to the SYNTEK-fermented formula.
The evidence at a glance
Two human clinical studies (randomized controlled trials), three preclinical studies, three patents, and three 2025 international gold awards.
Human clinical studies (2)
Digestive comfort and IBS, in adults.
- Putative probiotic strains isolated from kefir improve gastrointestinal health parameters in adults: a randomized, single-blind, placebo-controlled study. Probiotics and Antimicrobial Proteins, 2019. doi.org/10.1007/s12602-019-09615-9
- Interplay of yoga, physical activity, and probiotics in irritable bowel syndrome management: a double-blind randomized study. Complementary Therapies in Clinical Practice, 2024. doi.org/10.1016/j.ctcp.2024.101892
Preclinical & mechanistic studies (3)
Gut-brain, body weight and metabolism, in animal models.
- Long-term probiotic intervention mitigates memory dysfunction through a novel H3K27me3-based mechanism in lead-exposed rats. Translational Psychiatry, 2020. doi.org/10.1038/s41398-020-0719-8
- AB-Kefir reduced body weight and ameliorated inflammation in adipose tissue of obese mice fed a high-fat diet, but not a high-sucrose diet. Nutrients, 2021. doi.org/10.3390/nu13072182
- Evaluate and compare the anti-obesity effects of two probiotic preparations in high-fat diet-induced obese mice. Journal of Functional Foods, 2024. doi.org/10.1016/j.jff.2024.106199
Patents
- TW M603759: kefir probiotic encapsulation structure
- US 11,839,635 B1 and TW I854384: symbiotic composition against Salmonella typhimurium infection
Additional patents pending.
Awards & Recognition
The scientific and innovation work associated with AB-Kefir has also received international recognition through multiple invention awards.
From Research to Application
From human clinical research and mechanistic studies to patents and international recognition, AB-Kefir continues to build a scientific foundation across gastrointestinal health, microbiome-related research, and broader metabolic applications.
For brands and product developers looking for additional scientific information, study details, or formulation support, the full AB-Kefir scientific dossier is available upon request.
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Contact us to learn more about AB-Kefir and its application opportunities.


