Board-certified GI Doctor. Lifelong student of healing.

After years of practicing conventional gastroenterology, Dr. Shustina saw patients continuing to struggle despite medications, restrictive diets, extensive testing, procedures, or standardized functional medicine protocols. That recognition led her to develop a broader, more personalized approach focused on the deeper physiologic, microbiome, nervous-system, emotional, nutritional, and lifestyle factors driving chronic illness.

Dr. Shustina approaches healing with the clear recognition that the digestive system does not function in isolation. The gut, microbiome, nervous system, immune system, metabolism, inflammation, stress physiology, and emotional health continuously influence one another — and play a central role in both illness and healing.

Through The Whole Gut Health Method™, she combines evidence-based gastroenterology with a deeper approach to the gut–brain connection, microbiome health, neuroplasticity, nervous-system regulation, and mind–body healing — helping patients move beyond temporary symptom management toward more meaningful, lasting healing.