Job description. Registered Dietitian Nutritionist (RDN) – Eating Disorders & Gut Health. Total Health Concepts Counseling Center. Full-Time & Part-Time | In-Person & Hybrid. Virginia, Maryland, Florida. Total Health Concepts (THC) is a well-established, integrative private practice with 35 years of experience providing holistic mental health and wellness care. We are seeking a Registered Dietitian Nutritionist (RDN) to join our collaborative, mu...