Kara Fitzgerald, ND, IFMCP — Functional Medicine & Epigenetics Expert

Guest Speaker

Kara Fitzgerald, ND, IFMCP, is a leading voice in functional medicine and epigenetic research. Her award-winning clinical studies explore how diet and lifestyle interventions can influence biological aging. Her first trial, published in Aging (2021), showed that an 8-week DNA methylation-supportive program could reduce biological age in middle-aged men. A follow-up case series, published in Aging (2023), found similar results in women. Her 2025 study identified the specific nutrients within the intervention diet most strongly linked to biological age reversal.

Dr. Fitzgerald is the author of Younger You: Reduce Your Bio Age and Live Longer, Better and its companion Better Broths and Healing Tonics. She served as lead author and editor of Case Studies in Integrative and Functional Medicine and is a contributing author to Laboratory Evaluations for Integrative and Functional Medicine and IFM’s Textbook for Functional Medicine.

She earned her doctorate from the National University of Natural Medicine in Portland, Oregon, completed the first CNME-accredited postdoctoral program in nutritional biochemistry and laboratory science at Metametrix Clinical Laboratory, and her residency at Progressive Medical Center in Atlanta, Georgia.

An IFM faculty member and Certified Practitioner, Dr. Fitzgerald lectures internationally on functional medicine, longevity, and epigenetics. For the past decade, she has hosted the podcast New Frontiers in Functional Medicine and writes regularly at drkarafitzgerald.com. Her clinical practice is based in Connecticut.