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For Hannah Kleinfeld, some of the most compelling conversations in wellness begin with what we can’t see. The trillions of microorganisms that make up the gut microbiome have become the focus of a rapidly evolving field of research—gut health and the importance of probiotic support.
Kleinfeld’s interest began with her own health journey in her 20s, but curiosity soon became a vocation. Today, as co-founder and COO of Omni-Biotic U.S., she works alongside researchers and clinicians to bring emerging microbiome science out of the laboratory and into everyday life. At the heart of that work is Omni-Biotic, Europe’s No. 1 probiotic brand, whose targeted formulations take a more precise approach to supporting the microbiome.
With degrees from Yale and Harvard, a background at McKinsey & Company and Boston Medical Center, and certification as a health coach, Kleinfeld moves comfortably between science and the human experience of wellness. Whether through Omni-Biotic or as co-host of The Wellness Digest podcast, her mission is ultimately one of translation: making the complex inner world of the gut feel a little more understandable—and its place in whole-body well-being harder to overlook.
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