In California, the professional title of Registered Dietitian Nutritionist (RDN) is legally protected, requiring specific education and training, and is the best choice for evidence-based nutritional
advice. The California Academy of Nutrition and Dietetics is a key organization for RDNs in the state. You can find and connect with RDNs through the academy, by searching for local practices that employ them, or by inquiring at a healthcare facility.