The Science of Longevity: How Way of life Shapes Your DNA

Kara Fitzgerald, ND, IFMCP, is a number one voice in purposeful medication and epigenetic analysis. Her award-winning medical research examine how dietary and way of life interventions can affect organic getting old. Her first trial, revealed in Aging (2021), confirmed that an 8-week DNA methylation-supportive program might cut back organic age in middle-aged males. A follow-up case collection, revealed in Aging (2023), discovered comparable leads to girls. Her 2025 research recognized the precise vitamins throughout the intervention weight-reduction plan most strongly linked to organic age reversal.

Dr. Fitzgerald is the writer of Younger You: Reduce Your Bio Age and Live Longer, Better, and its companion Better Broths and Healing Tonics. She served as lead writer and editor of Case Studies in Integrative and Functional Medicine and is a contributing writer 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, accomplished the primary CNME-accredited postdoctoral program in dietary biochemistry and laboratory science at Metametrix Clinical Laboratory, and accomplished her residency at Progressive Medical Center in Atlanta, Georgia.

An IFM school member and Certified Practitioner, Dr. Fitzgerald lectures internationally on purposeful medication, longevity, and epigenetics. For the previous decade, she has hosted the podcast New Frontiers in Functional Medicine and writes repeatedly at drkarafitzgerald.com. Her medical follow relies in Connecticut.