Now that you have decided to seek out a Registered Dietitian (RD), you may come across professionals who call themselves RDs and others that call themselves nutritionists and may have wondered what the difference is. To put it simply, a nutritionist has no concrete definition, while a dietitian has credentials to go with the term. Any person working in a health food store or otherwise can call themselves a nutritionist.
Registered Dietitian can only be used by those dietetic professionals who are currently authorized by the Commission on the Accreditation for Dietetics Education (CADE) to use these credentials. These are legally protected titles. Individuals with these credentials have completed specific defined academic and supervised practice requirements, successfully completed a national registration examination and maintained continuing education requirements for recertification. All RDs study nutrition and application to food and health. And, some RDs call themselves nutritionists. Check the credentialing of your chosen health profession, ask questions, verify competence of your chosen health professional.