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Marcia Nahikian-Nelms, PhD, RDN, LD, CNSC, FAND

Clinical Professor; Director, Coordinated Dietetic Programs​

Office: 306 Atwell Hall
Phone: (614) 292-4758
Fax: (614) 292-0210
Email: marcia.nahikian-nelms@osumc.edu


  • PhD Health Education, Southern Illinois University
  • MEd Nutrition, University of North Carolina, Greensboro
  • BS Public Health Nutrition, University of North Carolina, Chapel Hill

​Professional Experiences:

Scholarly Experiences:

  • Clinical Professor; Director, Dietetic Internship; Director of Clinical Education Medical Dietetics, The Ohio State University, 2009 - Present
  • Professor; Director, Didactic Program in Dietetics, Southeast Missouri State University, 2003-2009
  • Associate Professor; Director, Didactic Program in Dietetics, Southeast Missouri State University, 1999-2003
  • Assistant Professor; Director, Didactic Program in Dietetics, Southeast Missouri State University, 1991-1999
  • Instructor, Southern Illinois University, Carbondale, 1990-1991
  • Clinical Instructor, School of Health and Rehabilitation Sciences, The Ohio State University, 1985-1990

Clinical Professional Experience:

  • Division of Hepatology Gastroenterology and Nutrition Wexner Medical Center at The Ohio State University 2013-present 
  • Division of Family Medicine College of Medicine The Ohio State University 2009-2011
  • Consulting, ABI-Mentor, Center for Comprehensive Services: Consulting RD for adolescent brain injury; dietitiancentral.com: served as expert in GI, oncology and HIV/AIDS nutrition, 2007-2009
  • Clinical Dietitian, Bone Marrow Transplant Program, The Ohio State University Hospitals, Columbus, Ohio, 1988-1990
  • Clinical Dietitian, Critical Care, The Ohio State University Hospitals, Columbus, Ohio, 1986-1988
  • Clinical Dietitian, Hematology-Oncology, The Ohio State University Hospitals, Columbus, Ohio, 1985-1988
  • Assistant Chief Clinical Nutritionist, Moses H. Cone Memorial Hospital, Greensboro, North Carolina, 1983-1985
  • Clinical Dietitian, Hematology-Oncology, Wilson Memorial Hospital, Wilson, North Carolina, 1983
  • Public Health Nutritionist, Haywood County Health Department, Waynesville, North Carolina, 1978-1981


Dr. Nahikian-Nelms is currently a clinical professor and director of the coordinated programs in dietetics in the Division of Medical Dietetics at The Ohio State University. She has practiced as a dietitian and public health nutritionist for over 25 years. She is the lead author for the textbooks: Nutrition Therapy and Pathophysiology; Medical Nutrition Therapy: A Case Study Approach, and Food and Culture. Additionally, she has contributed to Academy of Nutrition and Dietetics’ Nutrition Care Manual for the sections of Gastrointestinal Disorders and is the author of numerous peer-reviewed journal articles and chapters for other texts. Her clinical expertise focuses on development and practice of evidence based nutrition therapy for a variety of conditions including diabetes, gastrointestinal disease, hematology/oncology for both pediatrics and adult populations as well as the development of alternative teaching environments for students within their clinical training. Dr. Nahikian-Nelms has received the national award for Innovations in Dietetic Education, Governor’s Award for Outstanding Teaching for the State of Missouri, Outstanding Dietetic Educator in Missouri and Ohio and received the PRIDE award from Southeast Missouri State University in recognition of her teaching.​