Hannah Kleinfeld is the Chief Operating Officer of Allergosan USA, the U.S. joint-venture partner of Institut Allergosan, a global leader in microbiome science and gut health products. In 2019, Hannah helped launch the leading, professional European probiotic brand, OMNi-BiOTiC®, in the U.S. Hannah received a Bachelor of Arts degree in Economics and Psychology from Yale University, as well as a Master of Business Administration and Management from Harvard. Prior to joining Allergosan USA, Hannah worked as a Harvard Leadership Fellow at Boston Medical Center. Before that, Hannah served at McKinsey & Company with a focus in the healthcare industry. Hannah is dedicated to educating about the importance of gut health as a foundation for wellbeing and is passionate about helping others experience healthy and vibrant lives.