Medicine runs deep in his family roots, sparking a lifelong dedication to compassionate, patient-first medical care. But Dr. Lyday took that inspiration and ran with it— forging his own path focused on prevention, clinical nutrition, and long-term health results.

After graduating from the University of Georgia and earning his MD at UNC Chapel Hill, he initially believed surgery might be his future. Then came the “aha” moment: gastroenterology and digestive disease care stole his heart. (His dad, a thoracic surgeon, good-naturedly joked, “At least you didn’t become a psychiatrist!”) He completed his gastroenterology fellowship at the University of Nebraska and returned to Georgia, inspired by Atlanta’s rapidly growing medical community.

Board-certified in gastroenterology and liver disease, Dr. Lyday has dedicated his career to cancer prevention, advanced endoscopic procedures, clinical research, and—most importantly—using nutrition as a powerful tool to support healing and chronic disease prevention. He founded the Gastroenterology and Nutrition Department at Cancer Treatment Centers of America and has developed strong clinical relationships with respected institutions including Emory Saint Joseph’s Hospital, Northside Hospital, Piedmont Hospitals, and other leading healthcare systems throughout the Atlanta area.

Today, he brings this depth of experience into two patient-centered practices built around prevention, whole-body wellness, and evidence-based digestive health care.

At Neighborhood Gastroenterology & Nutrition in Roswell, Georgia, Dr. Lyday and his welcoming team practice their signature “Gastro 360” philosophy—treating the whole person, not just symptoms. The practice provides comprehensive care for fatty liver disease, chronic digestive disorders, acid reflux, irritable bowel symptoms, weight-related metabolic concerns, and preventive gastrointestinal screenings such as colon cancer screening and endoscopic evaluations. By combining state-of-the-art gastroenterology care with personalized nutrition strategies, the team helps patients achieve lasting wellness through expert medical treatment, practical lifestyle changes, and meaningful patient support. Patients consistently share appreciation for the practice’s thorough and compassionate approach—because feeling heard and understood makes a lasting difference in healthcare outcomes.

LifePlan Nutrition, a division of the practice dedicated to medical weight management and metabolic health, expands this care even further. This physician-directed program is built on current research in gut health, metabolism, chronic disease prevention, and sustainable weight loss. Through evidence-based nutrition counseling, metabolic and micronutrient testing, lifestyle coaching, and ongoing accountability, LifePlan helps patients identify root causes of weight and health concerns—many of which are closely tied to digestive function and inflammation. The program focuses on building sustainable habits that improve energy, confidence, and long-term wellness. It is not about quick fixes; it is about creating a personalized life plan for better health.

When he’s not working with patients, Dr. Lyday values maintaining balance and personal wellness. He enjoys fitness, golf, music, travel, and attending comedy shows—because he believes laughter truly is powerful medicine and an important part of overall well-being.

If you are ready to feel your best from the inside out, Dr. Lyday and his team at Neighborhood Gastroenterology & Nutrition and LifePlan Nutrition are here to support your health journey. His mission extends beyond treating gastrointestinal and liver conditions—he is committed to helping patients restore vitality, improve digestive health, and build sustainable wellness one thoughtful step at a time.