Dr. Gabrielle Lyon at the Office


As a functional medicine doctor, Dr. Gabrielle Lyon looks to treat the ROOT CAUSE as opposed to just the symptoms. Through nutrition, lifestyle changes, supplementation, medicine when needed, and holistic means - she utilizes many tools to have her patients feeling better than ever. 

Trained in nutrition and metabolism, she is uniquely practicing "Muscle-centric Medicine" which aims to support the largest organ (no, not skin!), the MUSCLE, the organ of longevity. Through this integrative practice, her patients can truly heal and thrive. 

Gabrielle is well known as an educator, mentor, healer and friend to all her patients, friends and family. Teaching is a passion and a huge part of her practice so that patients can take an active role in their health as a partnership. 

Dr. Lyon practices in both New York City and Encinitas, CA. For appointments and media inquiries, you may contact her here.


Dr. Gabrielle Lyon is a fellowship-trained Nutrition & Cognition physician who specializes in Muscle-Centric medicine. As co-leader of The Ash Center in Manhattan, she utilizes her truly integrated background to optimize this organ of longevity. Her deeply personalized approach emphasizes the health of the muscle itself. To this end, she leverages the best of evidence-based medicine with emerging cutting-edge science. Dr. Lyon can promise personalized medicine and then deliver unparalleled results by effectively restoring metabolism, balancing hormones and optimizing body composition. Through advanced nutritional interventions/programs, metabolic and genetic testing and behavioral action plans, she leaves no stone unturned. Dr. Lyon enters into a partnership with each patient to attain long-term success and a real-life metamorphosis.

Trained as a Doctor of Osteopathic Medicine who is board-certified in Family Practice, she completed two years of residency in Psychiatry at the University of Louisville as well. Her formal education culminated in a research fellowship in Nutritional Science and Geriatrics at Washington University in St. Louis. Dr. Lyon's ongoing work is directed at the interface between brain health and body composition optimization. Ultimately, she is uniquely situated to finally bridge the wide gap between the research and patient-care arenas, for she possesses the skills necessary to translate the latest and most relevant information being made available from labs across the world into life-altering results for her patients. As a nationally recognized authority, Dr. Lyon is a regular speaker for The Institute for Functional Medicine.

Prior to her foray into medicine, she was a national semifinalist in Fitness America, a professional fitness model and nationally ranked figure competitor.