Mary Cristine

Mary Cristine

Functional Gut Specialist & Wellness Entrepreneur, Be That Life

Mary Cristine is a pioneering health entrepreneur, certified clinical nutritionist, and founder of two science-backed wellness brands: Be That Life® Supplements and Beat That Dish® Meal Plans. With over a decade of experience specializing in gut health, nutrigenomics, and cellular longevity, she has become a trusted expert for CEOs, elite performers, and high-net-worth individuals seeking to optimize their healthspan, not just their lifespan. Mary’s multicultural perspective and science-driven approach have allowed her to build a wellness empire rooted in both purpose and performance. Her work is grounded in cutting-edge research on inflammation, mitochondrial function, and the gut-brain axis, with a deep commitment to functional, preventative health. In addition to running her companies, Mary is the host of the Be That Life Podcast, where she’s interviewed world-renowned experts like Dr. Aseem Malhotra, Zach Bush, and Shawn Wells. Mary has spoken on more than 60 global stages across Europe, the Middle East, and the U.S., delivering powerful keynotes on longevity science, trauma-informed healing, bio-individual nutrition, and the future of preventative health. Mary is also the creator of the BTL Walking Club, Dubai and London leading community wellness initiative. Her influence extends beyond the health world, Mary has been featured on multiple international magazine covers, recognized for her leadership, her mission to transform global health standards, and her ability to build brands that inspire action. Her content reaches a global audience across platforms, where she shares viral, evidence-based insights on aging, detoxification, health sovereignty, and how to thrive in a toxic world. Mary’s mission is simple yet radical: to make optimal health and conscious living the new norm.