Discover the gut-brain connection and how to fuel both for better mental resilience and long-term brain health.
We often blame stress, anxiety, or brain fog on external chaos.
But what if the real root is inside your gut?
Scientists are now calling the gut your “second brain”
and for good reason.
It produces 90% of your body’s serotonin,
communicates constantly with your nervous system,
and may even play a role in neurodegenerative diseases.
If you’ve been feeling off—mentally, emotionally, or even physically,
your gut might be trying to tell you something.
Dr. Tonya Hartig is a Doctor of Functional Medicine, educator, and Functional Nutrition Therapist with nearly 30 years of experience in holistic health.
Known for her down-to-earth approach, she specializes in making complex wellness topics easy to understand and apply. She brings her passion and expertise to webinars, group masterclasses, and one-on-one consultations—guiding others to take clear, confident steps toward better health.
John Westerdahl, PhD, MPH, RDN, CNS, FAND is a leading authority in the fields of food, nutrition, and longevity. He is a Registered Dietitian Nutritionist, Certified Nutrition Specialist, Board Certified Anti-Aging Health Practitioner, and Certified Lifestyle Medicine Professional.
Dr. Westerdahl has a private practice as a nutrition consultant specializing in Anti-Aging, Longevity, and Lifestyle Medicine. He previously served as Senior Nutritionist and Health Scientist for Shaklee Corporation.