Sophia Deahl, MS, RD, IFMCP

Registered Dietitian Certified in Functional Medicine

Sophia Deahl is an integrative and functional medicine registered dietitian nutritionist, educator, and speaker dedicated to addressing the root cause of health concerns through functional nutrition and lifestyle. She is the author of the Substack, Nourish & Thrive (Rising Top 75 in Health & Wellness). She has supported over 1000 clients through 1:1 consults. Through her 1:1 program, she partners with clients guiding them every step of the way to better physical and mental well-being, to allow them to reclaim better health and build sustainable habits for long-term vitality.

By blending functional, holistic, and integrative medicine, Sophia focuses on key pillars of health—including nutrition, hormones, gut health, movement, sleep, mindfulness, and detox—to support the body and mind as a whole. Her approach is deeply personalized, helping clients understand their unique health needs, develop tailored strategies, and foster a balanced mindset that transforms their relationship with food and their bodies.

Through her various platforms her mission is to empower adults to take control of their health, find balance, and build lasting habits that align with their goals.

Education & Certifications

Bachelor's, Psychology

Southern Methodist University

Master's of Science in Nutrition, Healthspan & Longevity​

University of Southern California​

Certified Functional Medicine Practitioner (IFMCP)​

Institute for Functional Medicine

Passing score on a comprehensive exam covering hormones, gut health, immune health, environmental toxins, bioenergetics, and cardiometabolic health.

1000 Hours Accredited Dietetic Internship​

Disease, Aging, Longevity, & Healthspan, Mentorship

Under Dr. Valter Longo, a world-renowned biogerontologist and leading expert in aging, longevity, fasting, disease prevention,  healthspan.

Additional Certifications & Trainings

  • DNA Analysis & Genetic Testing Certification (3×4 Genetics)
  • Gut Health and the GI-MAP (Rupa University)
  • Root Cause Testing for Metabolic Health (Dr. Casey Means, Rupa)

Peer-Reviewed Published Author

Bachelor's, Psychology

Southern Methodist University

Master's of Science in Nutrition, Healthspan & Longevity​

University of Southern California​

Certified Functional Medicine Practitioner (IFMCP)​

Institute for Functional Medicine

Passing score on a comprehensive exam covering hormones, gut health, immune health, environmental toxins, bioenergetics, and cardiometabolic health.

1000 Hours Accredited Dietetic Internship​

Disease, Aging, Longevity, & Healthspan, Mentorship

Under Dr. Valter Longo, a world-renowned biogerontologist and leading expert in aging, longevity, fasting, disease prevention,  healthspan.

Additional Certifications & Trainings

  • DNA Analysis & Genetic Testing Certification (3×4 Genetics)
  • Gut Health and the GI-MAP (Rupa University)
  • Root Cause Testing for Metabolic Health (Dr. Casey Means, Rupa)

Peer-Reviewed Published Author

Join my Substack Community

Nutrition made simple.

My Substack, Nourish & Thrive is a place where I share practical nutrition strategies to help you eat well, find balance and live fully.