Dr. Eleni (Lena) is a leading expert in the fields of microbiome health, sleep optimization, and lifestyle medicine. With a multidisciplinary background that bridges dental surgery, plant-based nutrition, and microbiome science, she has become a trusted voice in integrative health and preventive care. After earning her Doctor of Dental Surgery degree from the National and Kapodistrian University of Athens, she expanded her clinical focus through advanced studies, including a Certificate in Plant-Based Nutrition from Winchester University, a Diploma in Lifestyle Medicine from the International Board of Lifestyle Medicine (IBLM) and the British Society of Lifestyle Medicine (BSLM), and further specialized training in microbiome science at Stanford University.

Dr. Kantzou’s approach is rooted in the belief that sustainable health comes from within—by nurturing the gut, regulating sleep, managing stress, and fostering daily habits that support long-term vitality. Transitioning from a conventional clinical background to a holistic, science-based model of care, she works with individuals to address the root causes of chronic health issues and build personalized strategies for lasting wellness.

She is the co-founder of The Microbiome World, an educational initiative created with Eva Papadogiorgaki to help people better understand the crucial role of gut health in overall well-being. Through accessible, evidence-based resources—including interactive sessions, practical guides, and recipes—Dr. Kantzou empowers individuals to take control of their health through informed, everyday choices.

As a speaker, writer, and digital educator, Dr. Kantzou is known for making complex scientific concepts easy to understand and apply. Her work is guided by a deep passion for helping others achieve optimal health by aligning modern science with natural biological rhythms. Whether through clinical consultation or public outreach, she remains committed to transforming lives by promoting resilience from the inside out.