A Registered Dietitian (RD, sometimes RDN or LDN) is a licensed healthcare professional with a nutrition science degree, a supervised clinical internship, and a national board exam behind them. That clinical training means they can work with complex conditions (like PMOS, disordered eating, diabetes, GI issues, pregnancy-related needs and more), interpret labs, and coordinate with your doctors and other healthcare professionals."Nutritionist" and "nutrition coach" aren't protected titles in most states — anyone can use them, credentialed or not. Coaching has its place, but for evidence-based guidance you can also bill to insurance, you want a Registered Dietitian. Every provider at Coord Health is one.