Elisa Song

Dr. Elisa Song, MD is a Stanford-, NYU-, UCSF-trained integrative pediatrician, leading authority in pediatric functional medicine and the gut microbiome, and mom to 2 thriving children. She is on a mission to revolutionize the future of children’s health with a message that optimizing our healthspan and longevity begins in childhood.  The gut microbiome, immune resilience, and gut-brain wiring established in early life set the trajectory for how we age, think, and thrive across our entire lifespan.

Dr. Song is the national bestselling author of Healthy Kids, Happy Kids and the visionary founder of Healthy Kids Happy Kids, the go-to resource for families and practitioners seeking trusted, evidence-based, root-cause solutions for children – offering educational resources, practitioner trainings, and a growing portfolio of science-backed, pediatrician-formulated supplements to support children’s developing bodies, brains, and immune systems.

Dr. Song is the Chief Medical Officer of Tiny Health, leading the way in gold-standard microbiome testing for kids and adults, and Chair of A4M’s pediatric education. A sought-after speaker at the world’s leading functional and integrative medicine conferences, Dr. Song has been featured across Forbes, National Geographic, MindBodyGreen, Healthline, Parents, and Dr. Mark Hyman’s Doctor’s Farmacy – translating the science of the microbiome, the gut-brain axis, and whole-body resilience into strategies that can be used at any age.